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 42 cm²

squares


Answer:_______________




2)  

 
How many more squares must I shade to get a figure of 27 cm²

squares


Answer:_______________




3)  

 
How many more squares must I shade to get a figure of 31 cm²

squares


Answer:_______________




4)  

 
How many more squares must I shade to get a figure of 15 cm²

squares


Answer:_______________




5)  

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

squares


Answer:_______________




6)  

 
How many more squares must I shade to get a figure of 36 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 26 cm²

squares


Answer:_______________




9)  

 
How many more squares must I shade to get a figure of 16 cm²

squares


Answer:_______________




10)  

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

squares


Answer:_______________




 

1)  

 
How many more squares must I shade to get a figure of 42 cm²

Answer: 31 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 : 42 cm2- 11 cm2 = 31

I must shade 31 more squares.



2)  

 
How many more squares must I shade to get a figure of 27 cm²

Answer: 16 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 : 27 cm2- 11 cm2 = 16

I must shade 16 more squares.



3)  

 
How many more squares must I shade to get a figure of 31 cm²

Answer: 20 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 : 31 cm2- 11 cm2 = 20

I must shade 20 more squares.



4)  

 
How many more squares must I shade to get a figure of 15 cm²

Answer: 4 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 : 15 cm2- 11 cm2 = 4

I must shade 4 more squares.



5)  

 
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.



6)  

 
How many more squares must I shade to get a figure of 36 cm²

Answer: 25 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 : 36 cm2- 11 cm2 = 25

I must shade 25 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 26 cm²

Answer: 15 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 : 26 cm2- 11 cm2 = 15

I must shade 15 more squares.



9)  

 
How many more squares must I shade to get a figure of 16 cm²

Answer: 5 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 : 16 cm2- 11 cm2 = 5

I must shade 5 more squares.



10)  

 
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.