Question

Find the perimeter of square whose length of diagonal is 10 cm​

Answer 1

Answer:

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Step-by-step explanation:

Side× Side

10×10=100cm is the length.

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Answer 2

Answer : DIAGONAL OF A SQUARE : root 2a

               where a = side

               10 = root 2a

                a = 10 / root 2a

                a = 5 root 2

PERIMETER OF SQUARE : 4a

4 x 5 root 2 =]  20 root 2

Therefore side of square = 5 root 2

Therefore perimeter of square = 20 root 2 cm [or] 28.2842712475 cm

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