Question

Find the missing side length in the image below

Answer 1

Let missing side be x

Using basic proportionality theorem

$\\ \sf\longmapsto \dfrac{45}{35}=\dfrac{x}{56}$

$\\ \sf\longmapsto \dfrac{9}{7}=\dfrac{x}{56}$

$\\ \sf\longmapsto 7x=9(56)$

$\\ \sf\longmapsto x=\dfrac{9(56)}{7}$

$\\ \sf\longmapsto x=72$