Scroll:Measurements >> Trapezium >> saq (4465)


Written Instructions:

For each Multiple Choice Question (MCQ), four options are given. One of them is the correct answer. Make your choice (1,2,3 or 4). Write your answers in the brackets provided..

For each Short Answer Question(SAQ) and Long Answer Question(LAQ), write your answers in the blanks provided.

Leave your answers in the simplest form or correct to two decimal places.



 

1)  

 The area of a trapezium is 88 cm2 and height is 8 cm. If one of its parallel sides 8 cm. Find the lenth of the other side.


Answer:_______________




2)  

 The area of a trapezium is 55 cm2 and height is 10 cm. If one of its parallel sides 5 cm. Find the lenth of the other side.


Answer:_______________




3)  

 The area of a trapezium is 70 cm2 and height is 10 cm. If one of its parallel sides 8 cm. Find the lenth of the other side.


Answer:_______________




4)  

 The area of a trapezium is 72 cm2 and height is 8 cm. If one of its parallel sides 6 cm. Find the lenth of the other side.


Answer:_______________




5)  

 The area of a trapezium is 65 cm2 and height is 10 cm. If one of its parallel sides 8 cm. Find the lenth of the other side.


Answer:_______________




6)  

 The area of a trapezium is 56 cm2 and height is 8 cm. If one of its parallel sides 5 cm. Find the lenth of the other side.


Answer:_______________




7)  

 The area of a trapezium is 50 cm2 and height is 10 cm. If one of its parallel sides 9 cm. Find the lenth of the other side.


Answer:_______________




8)  

 The area of a trapezium is 80 cm2 and height is 8 cm. If one of its parallel sides 5 cm. Find the lenth of the other side.


Answer:_______________




9)  

 The area of a trapezium is 72 cm2 and height is 12 cm. If one of its parallel sides 9 cm. Find the lenth of the other side.


Answer:_______________




10)  

 The area of a trapezium is 77 cm2 and height is 14 cm. If one of its parallel sides 5 cm. Find the lenth of the other side.


Answer:_______________




 

1)  

 The area of a trapezium is 88 cm2 and height is 8 cm. If one of its parallel sides 8 cm. Find the lenth of the other side.

Answer: 14


SOLUTION 1 :

Given,

Area of trapezium = 88 cm2 , h = 8 cm , a = 8 cm , b = .

Area of trapezium = 12 x h (a + b) 

                     88   = 1/ 2 x 8 4 x (8 + b)

                     88    = 4(8 + b)

                                  884  = 8 + b        ( dividing by 4, both sides )

                                    22 = 8 + b 

                            22 - 8 = b     ( on transposing + 8 becomes - 8 )

                                   14 = b 

Hence, length of the other side is 14 cm.

 

 

 



2)  

 The area of a trapezium is 55 cm2 and height is 10 cm. If one of its parallel sides 5 cm. Find the lenth of the other side.

Answer: 6


SOLUTION 1 :

Given,

Area of trapezium = 55 cm2 , h = 10 cm , a = 5 cm , b = .

Area of trapezium = 12 x h (a + b) 

                     55   = 1/ 2 x 10 5 x (5 + b)

                     55    = 5(5 + b)

                                  555  = 5 + b        ( dividing by 5, both sides )

                                    11 = 5 + b 

                            11 - 5 = b     ( on transposing + 5 becomes - 5 )

                                   6 = b 

Hence, length of the other side is 6 cm.

 

 

 



3)  

 The area of a trapezium is 70 cm2 and height is 10 cm. If one of its parallel sides 8 cm. Find the lenth of the other side.

Answer: 6


SOLUTION 1 :

Given,

Area of trapezium = 70 cm2 , h = 10 cm , a = 8 cm , b = .

Area of trapezium = 12 x h (a + b) 

                     70   = 1/ 2 x 10 5 x (8 + b)

                     70    = 5(8 + b)

                                  705  = 8 + b        ( dividing by 5, both sides )

                                    14 = 8 + b 

                            14 - 8 = b     ( on transposing + 8 becomes - 8 )

                                   6 = b 

Hence, length of the other side is 6 cm.

 

 

 



4)  

 The area of a trapezium is 72 cm2 and height is 8 cm. If one of its parallel sides 6 cm. Find the lenth of the other side.

Answer: 12


SOLUTION 1 :

Given,

Area of trapezium = 72 cm2 , h = 8 cm , a = 6 cm , b = .

Area of trapezium = 12 x h (a + b) 

                     72   = 1/ 2 x 8 4 x (6 + b)

                     72    = 4(6 + b)

                                  724  = 6 + b        ( dividing by 4, both sides )

                                    18 = 6 + b 

                            18 - 6 = b     ( on transposing + 6 becomes - 6 )

                                   12 = b 

Hence, length of the other side is 12 cm.

 

 

 



5)  

 The area of a trapezium is 65 cm2 and height is 10 cm. If one of its parallel sides 8 cm. Find the lenth of the other side.

Answer: 5


SOLUTION 1 :

Given,

Area of trapezium = 65 cm2 , h = 10 cm , a = 8 cm , b = .

Area of trapezium = 12 x h (a + b) 

                     65   = 1/ 2 x 10 5 x (8 + b)

                     65    = 5(8 + b)

                                  655  = 8 + b        ( dividing by 5, both sides )

                                    13 = 8 + b 

                            13 - 8 = b     ( on transposing + 8 becomes - 8 )

                                   5 = b 

Hence, length of the other side is 5 cm.

 

 

 



6)  

 The area of a trapezium is 56 cm2 and height is 8 cm. If one of its parallel sides 5 cm. Find the lenth of the other side.

Answer: 9


SOLUTION 1 :

Given,

Area of trapezium = 56 cm2 , h = 8 cm , a = 5 cm , b = .

Area of trapezium = 12 x h (a + b) 

                     56   = 1/ 2 x 8 4 x (5 + b)

                     56    = 4(5 + b)

                                  564  = 5 + b        ( dividing by 4, both sides )

                                    14 = 5 + b 

                            14 - 5 = b     ( on transposing + 5 becomes - 5 )

                                   9 = b 

Hence, length of the other side is 9 cm.

 

 

 



7)  

 The area of a trapezium is 50 cm2 and height is 10 cm. If one of its parallel sides 9 cm. Find the lenth of the other side.

Answer: 1


SOLUTION 1 :

Given,

Area of trapezium = 50 cm2 , h = 10 cm , a = 9 cm , b = .

Area of trapezium = 12 x h (a + b) 

                     50   = 1/ 2 x 10 5 x (9 + b)

                     50    = 5(9 + b)

                                  505  = 9 + b        ( dividing by 5, both sides )

                                    10 = 9 + b 

                            10 - 9 = b     ( on transposing + 9 becomes - 9 )

                                   1 = b 

Hence, length of the other side is 1 cm.

 

 

 



8)  

 The area of a trapezium is 80 cm2 and height is 8 cm. If one of its parallel sides 5 cm. Find the lenth of the other side.

Answer: 15


SOLUTION 1 :

Given,

Area of trapezium = 80 cm2 , h = 8 cm , a = 5 cm , b = .

Area of trapezium = 12 x h (a + b) 

                     80   = 1/ 2 x 8 4 x (5 + b)

                     80    = 4(5 + b)

                                  804  = 5 + b        ( dividing by 4, both sides )

                                    20 = 5 + b 

                            20 - 5 = b     ( on transposing + 5 becomes - 5 )

                                   15 = b 

Hence, length of the other side is 15 cm.

 

 

 



9)  

 The area of a trapezium is 72 cm2 and height is 12 cm. If one of its parallel sides 9 cm. Find the lenth of the other side.

Answer: 3


SOLUTION 1 :

Given,

Area of trapezium = 72 cm2 , h = 12 cm , a = 9 cm , b = .

Area of trapezium = 12 x h (a + b) 

                     72   = 1/ 2 x 12 6 x (9 + b)

                     72    = 6(9 + b)

                                  726  = 9 + b        ( dividing by 6, both sides )

                                    12 = 9 + b 

                            12 - 9 = b     ( on transposing + 9 becomes - 9 )

                                   3 = b 

Hence, length of the other side is 3 cm.

 

 

 



10)  

 The area of a trapezium is 77 cm2 and height is 14 cm. If one of its parallel sides 5 cm. Find the lenth of the other side.

Answer: 6


SOLUTION 1 :

Given,

Area of trapezium = 77 cm2 , h = 14 cm , a = 5 cm , b = .

Area of trapezium = 12 x h (a + b) 

                     77   = 1/ 2 x 14 7 x (5 + b)

                     77    = 7(5 + b)

                                  777  = 5 + b        ( dividing by 7, both sides )

                                    11 = 5 + b 

                            11 - 5 = b     ( on transposing + 5 becomes - 5 )

                                   6 = b 

Hence, length of the other side is 6 cm.