Find the side of the square whose diagonal is 5 root 2 CM.
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therefore the angles of a square are 90 °
so, by Pythagoras theorem...
a²+a²= (5√2)²
2a²=50
a²=25
a=5 cm....
so, by Pythagoras theorem...
a²+a²= (5√2)²
2a²=50
a²=25
a=5 cm....
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