Question

A triangle is divided into 4 parts and the area of the 4 regions are given inside the corresponding regions. Find the value of $x$ if area of triangle is 30.

Answer 1

Given the area of a triangle is $30$.

Now area of triangle is:

$are{a}_1+are{a}_2+are{a}_3+are{a}_4=30$

$⟹8+10+5+x=30$

$⟹x=30-10-8-5=7$