practice

SOLVE EACH QUSTION 

1. What is the sum of the angles in a triangle?

2. If angle A is 30∘ and angle B is 60∘, what is angle C?

3. What type of angle measures exactly 90∘?

4. If two angles are complementary, what is the sum of their measures?

5. If angle D measures 45∘, what is the measure of its supplementary angle?

6. In a right triangle, what is the measure of the third angle if one angle is 90∘ and another is 30∘?

7. What is the measure of a straight angle?

8. If angle E measures 120∘, is it acute, right, or obtuse?

9. How many degrees are in a full circle?

10. If two angles are equal and add up to 180∘, what type of angles are they?

11. What is the measure of each angle in an equilateral triangle?