Question

Find the missing side length in the image below

Answer 1

Let missing side be x

Using basic proportionality theorem

$\\ \sf\longmapsto \dfrac{18}{14}=\dfrac{27}{x}$

$\\ \sf\longmapsto \dfrac{9}{7}=\dfrac{27}{x}$

$\\ \sf\longmapsto 9x=7(27)$

$\\ \sf\longmapsto x=\dfrac{7(27)}{9}$

$\\ \sf\longmapsto x=21$