Question

15. The floor of a room is a square of whose each side
is 10 m. Find the area of its four walls if it is 4 m
high-
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Answer 1

Answer:

Since, side of floor is 10cm, therefore, the measure of 1 side of the wall will be 10cm as floor and wall touch each other.

Therefore, area of 1 wall = 10 x 4

                                          = 40 cm²

Now, there are 4 walls.

therefore, area of 4 walls = 4 x 40

                                            = 160 cm²

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Answer 2

Answer:

the one wall is =10 m

than four wall =10 × 4 =

= 40 meters