The two angles of a triangle are 30°and 80°. Find the third angle.
Using the triangle's property- The sum of all the interior angles of a triangle is 180°.$$
A +B+ C= 180°
$$
Given-
Solution- Putting the values in the formula,$$
30 +80+ C= 180
$$
$$
C= 70°
$$
Therefore, the third angle of the triangle is 70°.