Angles of triangles practice connexus

Answer 1

Below are some angles of triangles practice questions:

1) In triangle ABC, angle A measures 45°, angle B measures 60°. Find the measure of angle C.

2) In triangle DEF, angle D measures 80° and angle F measures 45°. Find the measure of angle E.

3) In triangle XYZ, angle X measures 40° and angle Y measures 50°. Find the measure of angle Z.

4) In triangle PQR, angle P measures 75° and angle Q measures 30°. Find the measure of angle R.

5) In triangle MNO, angle M measures 90° and angle N measures 30°. Find the measure of angle O.

Answers:
1) Angle C = 180° - (45° + 60°) = 75°
2) Angle E = 180° - (80° + 45°) = 55°
3) Angle Z = 180° - (40° + 50°) = 90°
4) Angle R = 180° - (75° + 30°) = 75°
5) Angle O = 180° - (90° + 30°) = 60°