Question

Find the diagonal of a rectangular whose length is $35$ cm and breadth is $12$ cm.

Answer 1

Let us take a rectangle $ABCD$ in which $AC$ is a diagonal

$AB=35cm$

$BC=12cm$

$AC=?$

By Pythagoras theorem

$A{C}^2=A{B}^2+B{C}^2$

$A{C}^2=(35{)}^2+(12{)}^2$

$A{C}^2=1225+144$

$AC=\sqrt{1369}$

$AC=37cm.$

Therefore, diagonal of the rectangle $=37cm.$