Sum of Interior Angles of a Triangle

Question 1

The measure of one interior angle of a triangle is 45°. What can you conclude about the other two interior angles of the triangle?

Revolt · Accepted Answer

The sum of the measures of the other two angles is 135°.

Question 2

Lines p and q are parallel. What is the measure of angle 2 in degrees?

Revolt · Accepted Answer

60°

Question 3

Kellianne lined up the interior angles of the triangle along line p below. Which statements are true for line p? Check all that apply.

Revolt · Accepted Answer

It stays the same even if the angles in the triangle change.; It represents the sum of the measures of the interior angles of the triangle.; It combines the three interior angles of the triangle to form a straight line.; It is a straight line with a measure of 180°.

Question 4

Which set of angle measures could be the measures of the interior angles of a triangle?

Revolt · Accepted Answer

60°, 60°, and 60°

Question 5

What is the sum of the measures of the interior angles of any triangle?

Revolt · Accepted Answer

180°

Question 6

What is the measure of angle B?

Revolt · Accepted Answer

102°

Question 7

Aliya lined up the interior angles of the triangle along line p below. When the measure of angle A increases in the triangle, what happens to angle A on line p?

Revolt · Accepted Answer

It also increases.

Question 8

Lines and are parallel in the image below. The image will be used to prove that the sum of the measures of the interior angles of is 180°.Which statement would be included in a proof of why ?

Revolt · Accepted Answer

Angles F and C are congruent.

Question 9

The measure of one angle of a triangle is 105°. What do you know about the measures of the other two angles? Check all that apply.

Revolt · Accepted Answer

Both angles are acute.; The sum of the measures of the two angles is 75°.; The measure of neither angle is more than 75°.

Sum of Interior Angles of a Triangle Answers

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