Best Answer

The third angle of a triangle is equal to 180 degrees minus (the sum of the first two angles).

Q: What is the measure of the third angle of the triangle?

Write your answer...

Submit

Still have questions?

Continue Learning about Algebra

55°

The missing angle measure is 100 degrees.

77. The sum of the three angles in a triangle equal the sum of 180 degrees

In a triangle the measure of the first angle is four times the measure of the second angle. The measure of the third angle is 18 degrees more than the second angle. What is the measure of the first angle? 68 43 17 95

The sum of the angles is 180 degrees in any triangle. So 180-140 is 40 and the third angle is 40 degrees.

Related questions

If two angles of a triangle each measure 55 what is the measure of the third angle?

Two angles of a triangle add up to 65°. What is the measure of the third angle?

55°

The missing angle measure is 100 degrees.

100.

The third angle is (128 degrees) minus (the second angle).

If that's a triangle, the third angle is 90 degrees.

The interior angles of a 2-D triangle will always add up to 180 degrees. To determine the measure of the third angle: 180 - (32 + 75) = 73 degrees

The third angle is 85 degrees. The sum of all internal angles in a triangle is always 180 degrees

90o

77. The sum of the three angles in a triangle equal the sum of 180 degrees

The third angle measures 18 degrees.