Question

a perimeter of a square is 28 cm find its area and the length of its diagonal
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Answer 1

Step-by-step explanation:

Given that perimeter of square=28cm

we known that perimeter of square = 4S (S=side)

4S=28

S=28/4

S=7cm

Area of the square =S*S

=7*7

=49 sq.cm(or cm2)

length of its diagonal d=root 2.S

$d = \sqrt{2} (7) \\ d = 7 \sqrt{2}cm$

Answer 2

Kindly refer the attachment for step by step solution

Hope it helps u!!!