Scroll:Measurement >> Area >> saq (281)

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)  

 
How many more squares must I shade to get a figure of 38 cm²

squares


Answer:_______________




2)  

 
How many more squares must I shade to get a figure of 20 cm²

squares


Answer:_______________




3)  

 
How many more squares must I shade to get a figure of 19 cm²

squares


Answer:_______________




4)  

 
How many more squares must I shade to get a figure of 14 cm²

squares


Answer:_______________




5)  

 
How many more squares must I shade to get a figure of 25 cm²

squares


Answer:_______________




6)  

 
How many more squares must I shade to get a figure of 22 cm²

squares


Answer:_______________




7)  

 
How many more squares must I shade to get a figure of 33 cm²

squares


Answer:_______________




8)  

 
How many more squares must I shade to get a figure of 41 cm²

squares


Answer:_______________




9)  

 
How many more squares must I shade to get a figure of 32 cm²

squares


Answer:_______________




10)  

 
How many more squares must I shade to get a figure of 24 cm²

squares


Answer:_______________




 

1)  

 
How many more squares must I shade to get a figure of 38 cm²

Answer: 27 squares


SOLUTION 1 :

Step 1: Area of rectangle : 5 x 2 = 10 cm2
Step 2: Area of 1st triangle :  12 cm2
Step 3: Area of 2nd triangle : 12 cm2
Step 4: Total area of the figure : 10 + 12 + 12 = 11 cm2
Step 5: How many more squares left : 38 cm2- 11 cm2 = 27

I must shade 27 more squares.



2)  

 
How many more squares must I shade to get a figure of 20 cm²

Answer: 9 squares


SOLUTION 1 :

Step 1: Area of rectangle : 5 x 2 = 10 cm2
Step 2: Area of 1st triangle :  12 cm2
Step 3: Area of 2nd triangle : 12 cm2
Step 4: Total area of the figure : 10 + 12 + 12 = 11 cm2
Step 5: How many more squares left : 20 cm2- 11 cm2 = 9

I must shade 9 more squares.



3)  

 
How many more squares must I shade to get a figure of 19 cm²

Answer: 8 squares


SOLUTION 1 :

Step 1: Area of rectangle : 5 x 2 = 10 cm2
Step 2: Area of 1st triangle :  12 cm2
Step 3: Area of 2nd triangle : 12 cm2
Step 4: Total area of the figure : 10 + 12 + 12 = 11 cm2
Step 5: How many more squares left : 19 cm2- 11 cm2 = 8

I must shade 8 more squares.



4)  

 
How many more squares must I shade to get a figure of 14 cm²

Answer: 3 squares


SOLUTION 1 :

Step 1: Area of rectangle : 5 x 2 = 10 cm2
Step 2: Area of 1st triangle :  12 cm2
Step 3: Area of 2nd triangle : 12 cm2
Step 4: Total area of the figure : 10 + 12 + 12 = 11 cm2
Step 5: How many more squares left : 14 cm2- 11 cm2 = 3

I must shade 3 more squares.



5)  

 
How many more squares must I shade to get a figure of 25 cm²

Answer: 14 squares


SOLUTION 1 :

Step 1: Area of rectangle : 5 x 2 = 10 cm2
Step 2: Area of 1st triangle :  12 cm2
Step 3: Area of 2nd triangle : 12 cm2
Step 4: Total area of the figure : 10 + 12 + 12 = 11 cm2
Step 5: How many more squares left : 25 cm2- 11 cm2 = 14

I must shade 14 more squares.



6)  

 
How many more squares must I shade to get a figure of 22 cm²

Answer: 11 squares


SOLUTION 1 :

Step 1: Area of rectangle : 5 x 2 = 10 cm2
Step 2: Area of 1st triangle :  12 cm2
Step 3: Area of 2nd triangle : 12 cm2
Step 4: Total area of the figure : 10 + 12 + 12 = 11 cm2
Step 5: How many more squares left : 22 cm2- 11 cm2 = 11

I must shade 11 more squares.



7)  

 
How many more squares must I shade to get a figure of 33 cm²

Answer: 22 squares


SOLUTION 1 :

Step 1: Area of rectangle : 5 x 2 = 10 cm2
Step 2: Area of 1st triangle :  12 cm2
Step 3: Area of 2nd triangle : 12 cm2
Step 4: Total area of the figure : 10 + 12 + 12 = 11 cm2
Step 5: How many more squares left : 33 cm2- 11 cm2 = 22

I must shade 22 more squares.



8)  

 
How many more squares must I shade to get a figure of 41 cm²

Answer: 30 squares


SOLUTION 1 :

Step 1: Area of rectangle : 5 x 2 = 10 cm2
Step 2: Area of 1st triangle :  12 cm2
Step 3: Area of 2nd triangle : 12 cm2
Step 4: Total area of the figure : 10 + 12 + 12 = 11 cm2
Step 5: How many more squares left : 41 cm2- 11 cm2 = 30

I must shade 30 more squares.



9)  

 
How many more squares must I shade to get a figure of 32 cm²

Answer: 21 squares


SOLUTION 1 :

Step 1: Area of rectangle : 5 x 2 = 10 cm2
Step 2: Area of 1st triangle :  12 cm2
Step 3: Area of 2nd triangle : 12 cm2
Step 4: Total area of the figure : 10 + 12 + 12 = 11 cm2
Step 5: How many more squares left : 32 cm2- 11 cm2 = 21

I must shade 21 more squares.



10)  

 
How many more squares must I shade to get a figure of 24 cm²

Answer: 13 squares


SOLUTION 1 :

Step 1: Area of rectangle : 5 x 2 = 10 cm2
Step 2: Area of 1st triangle :  12 cm2
Step 3: Area of 2nd triangle : 12 cm2
Step 4: Total area of the figure : 10 + 12 + 12 = 11 cm2
Step 5: How many more squares left : 24 cm2- 11 cm2 = 13

I must shade 13 more squares.