Finding the Missing Angle of a Triangle: A Step-by-Step Guide | Triangles | Math with Mr. J

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

• 90 degrees

• 180 degrees

• 270 degrees

• 360 degrees

A triangle has two angles that measure 70 degrees and 50 degrees. What is the measure of the third angle?

• 40 degrees

• 50 degrees

• 60 degrees

• 70 degrees

A triangle has two angles measuring 98 degrees and 31 degrees. What is the measure of the third angle?

• 41 degrees

• 51 degrees

• 61 degrees

• 71 degrees

In a right-angled triangle, one acute angle measures 24 degrees. What is the measure of the other acute angle?

• 56 degrees

• 66 degrees

• 76 degrees

• 86 degrees