Online Test — Angle Relationships
10 Questions • 30 min • Chapter MCQ
30:00
Question 1 of 10
easy
Complementary angles sum to?
90°
180°
360°
45°
Explanation: Complementary = 90°
Question 2 of 10
easy
Supplementary angles sum to?
90°
180°
360°
45°
Explanation: Supplementary = 180°
Question 3 of 10
easy
Find complement of 25°
155°
65°
75°
35°
Explanation: 90-25=65°
Question 4 of 10
easy
Find supplement of 110°
70°
20°
250°
180°
Explanation: 180-110=70°
Question 5 of 10
medium
Vertical angles are always?
Supplementary
Complementary
Equal
Sum to 90°
Explanation: Vertical angles are equal
Question 6 of 10
medium
Triangle angles: 40°, 60°, ?
80°
100°
70°
90°
Explanation: 180-100=80°
Question 7 of 10
medium
Right triangle, one angle 40°. Other acute angle?
40°
50°
60°
90°
Explanation: 90-40=50°
Question 8 of 10
medium
Two angles are vertical. One is 75°. The other is?
15°
75°
105°
180°
Explanation: Vertical angles are equal
Question 9 of 10
medium
Angles on a straight line sum to?
90°
180°
270°
360°
Explanation: Linear pair = 180°
Question 10 of 10
medium
Equilateral triangle each angle?
45°
60°
90°
30°
Explanation: 180÷3=60°