(2) Find the length of the diagonal of square of side 10 cm. Also find its perimeter.
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Answered by
1
Answer:
since d=√2a (formula)
therefore d ≈ 14.14cm
since 4×a (formula)
therefore p = 40cm
Answered by
0
Step-by-step explanation:
(10)² = y² + y²
100= 2y²
y²= 100÷2= 50
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