Question

the diagonal of a square is 42.3 cm long find the length of its sides and area of square

Answer 1

Let side of square be x

by Pythagoras theorem,

x²+x²=(42.3)²

2x²=1789.29

x²=894.645                    ..........(i)

x=√894.645cm

or x=29√53.645cm

area of square=x²

from (i),

x²=894.645

∴area of square=894.645cm²

Answer 2

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