Question

the diagonal of a square field is 90 M what is its area

Answer 1

Diagonal=(a)²+(a)²

where a=side of diagonal

since diagonal=90

just put that in the above equation and find "a".

Then find the area using formula "a²"

Answer 2

solution

We know that, area of a square is equal to half product of its diagonals

Given, the diagonals length are 90 metres

Hence its area would be;

1/2 x 90x90

=>> 45x90

» 4050 m^2