Question

7. What is the measure of the third angle of a triangle if the measures of two angles are 40^{\circ} and 115^{c} ?​

Answer 1

Answer:

25°

Step-by-step explanation:

In ️ ABC

AB = 40°

BC = 115°

CA = ?

By Angle sum property

Angle A + Angle B + Angle C = 180°

40° + 115° + x = 180°

155 + x = 180°

x = 180 - 155

x = 25°

Therefore, angle CA = 25°.