Triangles/Angles

Question 1

What happens when two lines intersect?

Answer 1

they formed two vertical angles.

Question 2

what is the angle sum property of a triangle?

Answer 2

The sum of the interior angles of any triangle is always 180°.

Question 3

How do you find a missing angle in a triangle if you know the other two angles?

Answer 3

Subtract the sum of the two known angles from 180° to find the missing angle.

Question 4

What are vertical angles?

Answer 4

Vertical angles are the angles opposite each other when two lines intersect. They are always congruent (equal).

Question 5

If two intersecting lines form a pair of adjacent angles that add up to 180°, what are these angles called?

Answer 5

These angles are called supplementary angles because they add up to 180°.

Question 6

In a right triangle, what is the measure of the non-right angles?

Answer 6

The two non-right angles in a right triangle must add up to 90° because the total sum of all angles in a triangle is 180°.

Question 7

If two angles in a triangle are 50° and 60°, what is the measure of the third angle?

Answer 7

The third angle is 70°, because 50° + 60° = 110°, and 180° - 110° = 70°.

Question 8

What are adjacent angles?

Answer 8

Adjacent angles are two angles that share a common side and a common vertex.