The diagonal of a square is 20 cm
Slole of the square and its perimeter
find the
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Answer:
Diagonal of a square = side
2
⇒ Side =
2
diagonal
=
2
20
cm=
2
20
×
2
2
cm
=
2
20
×
2
cm=10
2
cm
∴ Perimeter of square =4×side
=4×10
2
= 40
2
cm.
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