Find Missing Angles In A Triangle Using Interior And Exterior Angles -Multiple Choice Questions Quiz

Interactive MCQs on the topic “Find Missing Angles In A Triangle Using Interior And Exterior Angles”:

Solve the following 10 questions: Only one option is correct. Click on the “Submit” button when done. Click on the “embed” button to use this quiz on your website. Click on “WhatsApp” to share this quiz.

Question 1:What is the sum of the interior angles of any triangle?

(A) 180°
(B) 90°
(C) 270°
(D) 360°

Question 2:An exterior angle of a triangle is 120°, and one of its adjacent interior angles is 50°. What is the other interior angle of the triangle?

(A) 40°
(B) 50°
(C) 60°
(D) 70°

Question 3: If one interior angle is 60°, and the exterior angle at the same vertex is 120°, what is the relationship?

(A) 90°
(B) 180°
(C) 270°
(D) 300°

Question 4:Triangle ABC has interior angles 40° and 80°. What is the third interior angle?

(A) 70°
(B) 50°
(C) 60°
(D) 80°

Question 5:If the exterior angle of a triangle is 100°, and one of the opposite interior angles is 40°, what is the other opposite interior angle?

(A) 30°
(B) 40°
(C) 50°
(D) 60°

Question 6:In triangle XYZ, ∠X = 50°, ∠Y = 60°. What is the measure of the exterior angle at ∠Z?

(A) 110°
(B) 100°
(C) 90°
(D) 120°

Question 7:A triangle has an exterior angle of 130°. If one of the opposite interior angles is 50°, what is the third angle of the triangle?

(A) 60°
(B) 50°
(C) 70°
(D) 40°

Question 8:If one interior angle of a triangle is 90°, and another is 45°, what is the exterior angle at the third vertex?

(A) 120°
(B) 90°
(C) 135°
(D) 150°

Question 9:What is always true about an exterior angle of a triangle?

(A) It equals 90°
(B) It’s always obtuse
(C) It equals the adjacent angle
(D) It equals the sum of opposite interior angles

Question 10:A triangle has angles 30°, 60°, and 90°. What is the exterior angle to the 30° angle?

(A) 150°
(B) 120°
(C) 90°
(D) 60°