Question

Find the area of the rectangle whose two adjacent sides are of length $4$ cm and $3$ cm also find the diagonal of the rectangle.

Answer 1

Given the two adjacent sides of the rectangle is $4$ cm and $3$ cm.

Then the area of the rectangle is $4\times 3=12$ cm${}^2$.

Again the diagonal of the rectangle is $\sqrt{3^2+4^2}=\sqrt{25}=5$ cm.