Question

Find perimeter of a square if it's daigonal is 10√2 cm
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Answer 1

Answer:

40 cm

Step-by-step explanation:

if the diagonal is 10root2 cm

then (10 root 2)²=200

as the it will form a right angled triangle, so

that means, a²+a²=200 (if we take side=a)

that means, 2a²=200

that means a²=200/2=100

that means a= root 100

that means, a=10

and hence the perimeter is 4×10=40cm

if you can't understand then comment me, I will try again to do my best, but I hope from the image you can understand..