Question

8. The diagonal of a square is 15 m; find the
length of its one side and perimeter.
16​

Answer 1

Step-by-step explanation:

if one side = x

$diagonal = x \sqrt{2} \\ x \sqrt{2} = 15 \\ x = \frac{15}{ \sqrt{2} } ( = side) \\perimeter = 4x = 4 \times \frac{15}{ \sqrt{2} } = 2 \sqrt{2} \times 15 \\ = 30 \sqrt{2}$