Answer :
The area of the shape 1 is 49 square cm, area of the shape 2 is 169 square cm and area of the shape 3 is 361 square cm.
We have to find the area of the shapes
(1) who's all dimensions are 7 cm.
(2) who's all dimensions are 13 cm.
(3) whose dimensions are 19 cm.
All the shapes will form a square because their both sides are equal.
We know the area of the square is "a x a" where 'a' is the side of the square.
Thus, the area for 1st figure is
a x a = 7 x 7
area = 49 square cm.
Area for the 2nd figure is
a x a = 13 x 13
area = 169 square cm.
Similarly, the area of 3rd figure is:
a x a = 19 x 19
area = 361 square cm.
Hence, the area of all the given shapes are 49square cm, 169 square cm and 361 square cm.
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Answer:
1- 7cm × 7 cm - 49 cm squ.
13cm × 13 cm -169. cm square
19×19-361 cm square
