Question

एक आयत की लंबाई चौडाई से दुगुनी है। यदि
परिमाप 120 मीटर हैं तो क्षेत्रफल हैं
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Answer 1

Answer:

$800 \: {m}^{2}$

Step-by-step explanation:

Let the breadth is X then length will be 2X.

Perimeter = 2(length + breadth)

or, 120 m = 2(X + 2X)

or, 120m/2 = 3X

or, X = 60m / 3 = 20m

Therefore breadth is 20m and length is 2x20m = 40m.

Now area of the rectangle = l X b

or, A = 20m X 40m = 800 sq.m

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