Find the diagonal of a square whose area is 81 cm square.
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Answered by
2
Answer:
9 root 2
Step-by-step explanation:
diagonal of a square = root 2 * side
area = side * side
side = 9
diagonal = 9 root 2
Answered by
2
Step-by-step explanation:
area of square = (side)^2
81=(side)^2
Taking square root
side = 9 cm
diagonal = √2 side
=9√2 cm
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