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Maths · Grade 3 · Set C
Same area, different shapes
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C
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Remember: Different shapes can have the same area. Count the squares that cover a shape, or count the rows and add.

Shapes that are not rectangles

1
Each square is 1 square unit. How many squares cover the staircase?
2
Each square is 1 square unit. How many squares cover the cross?
3
Both rugs are covered by squares. Which rug has the bigger area?
the left onethe right onethey are the same
4
Count by rows. How many squares cover the floor?
5
Three rugs together are covered by squares. How many squares cover all three rugs?
6
The light squares are laid. How many more tiles cover the whole floor?

Same area, different shapes

7
These two rugs have the same area.
TrueFalse
8
Which one is covered by 18 squares?
A
B
C
9
The kitchen and the hall are covered by squares. How many squares cover both rooms?
10
🍫A tray holds 40 chocolate squares in 5 equal rows. How many squares are in each row?
11
Draw a rectangle that is covered by 12 squares. Write how many rows and how many columns it has.
12
Write how you know a 2 by 6 rectangle and a 3 by 4 rectangle have the same area.
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Answer key · Set C
Same area, different shapes
110 The rows have 1, 2, 3 and 4 squares. 1 + 2 + 3 + 4 = 10.
29 The middle row has 5 squares. 2 squares are above it and 2 are below. 5 + 2 + 2 = 9.
3the right one The left rug has 3 × 6 = 18 squares. The right rug has 5 × 4 = 20 squares.
442 7 rows of 6 squares. 6 × 7 = 42.
532 10 + 14 + 8 = 32 square feet.
612 The dark part is 2 rows of 6 tiles. 2 × 6 = 12.
7True 3 × 8 = 24 and 4 × 6 = 24. The shapes differ but the area is the same.
8B 3 rows of 6 squares make 18. A has 20 and C has 16.
930 The kitchen is 4 × 5 = 20 and the hall is 2 × 5 = 10. 20 + 10 = 30.
108 5 rows with the same number in each make 40. 5 × 8 = 40.
12Your own words: a grown-up reads it.
Mark each answer, count the right ones and write the score on the sheet.