Question

The measures of two angles of a triangle are given. Find the measure of the third angle.

$25°,35°$

Answer 1

Angle sum property:

Sum of all interior angles of a triangle is $180°$ .

The sum of the three angles of a triangle $=180°$
So, third angle $=180°-(25°+35°)$
$=180°-60°=120°$
The measure of the third angle is $120°$.

Hence, the third angle is $120°$