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Q.

Find the diagonal of a square whose side is 10cm.

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a

10cm

b

20cm

c

d

cm

answer is C.

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Detailed Solution

Concept- Square is a quadrilateral in which all sides are equal and are at right angles.
A quadrilateral has 2 diagonals.
In square, diagonals bisect each other at right angles.
If side of a square is s cm, then diagonal of the square can be calculated as:

In the question, the side of the square is given as 10cm.
Question Image

Hence, the correct answer is option 3.

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Find the diagonal of a square whose side is 10cm.