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2 years ago

The perimeter of a square is 28cm. Work out the area of the square.

Mathematics

2 answers:

Marat540 [252]2 years ago

6 0

Answer:

28:4=7

7×7=49

Step-by-step explanation:

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ira [324]2 years ago

5 0

Answer:

the area of the square is 49cm

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Option A

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$\cos ^{2} x-\sin ^{2} x=1-2 \sin ^{2} x$

Applying this in above eqn 2, we get

$\cos (x+2 x)=\cos x\left(1-2 \sin ^{2} x\right)-\sin x(2 \sin x \cos x)$

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