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Triangle Sum Theorem

Last updated almost 2 years ago
8 questions
1

What is the sum of the angles in a triangle?

1

If one angle in a triangle is 60 degrees and another is 45 degrees, what is the third angle?

1

Which of the following sets of angles can form a triangle? ["30 degrees", "60 degrees", "90 degrees"]

1

If two angles of a triangle are equal and each measures 45 degrees, what is the third angle?

1

A triangle has the following interior angles. What is the measurement of the missing angle in degrees?

Draggable itemCorresponding Item
110° and 30°
40°
90° and 45°
45°
60° and 70°
50°
1

One angle in a triangle is twice the sum of the other two. What are the possible angle measures?

Draggable itemCorresponding Item
80° triple (twice 40°)
40° triple
60° triple (twice 30°)
30° triple
75° triple (twice 37.5°)
37.5° triple
1

Given the following angles of a triangle, find the third angle.

Draggable itemCorresponding Item
100° and 45°
35°
80° and 50°
50°
50° and 60°
70°
1

In a right triangle, one of the acute angles is given. Find the other angle.

Draggable itemCorresponding Item
30°
60°
60°
30°
45°
45°