Question

Triangle Proportions pls help find ? ive been trying for 20 mins

Answer 1

Let missing side be x

$\\ \sf\longmapsto \dfrac{2}{5}=\dfrac{x}{10}$

Now

$\\ \sf\longmapsto 5x=20$

$\\ \sf\longmapsto x=\dfrac{20}{5}$

$\\ \sf\longmapsto x=4$

Answer 2

Let the other side be x

$\frac{2}{5} = \frac{x}{10}$

$= > 5x=20$

$x = \frac{20}{5}$

$x=4$

Hence, other sides will be 4