TEKS 7.11C Find Missing Angle

Front

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

Back

180 degrees

Front

If one angle of a triangle is 90 degrees, what type of triangle is it?

Back

Right triangle

Front

In a triangle, if two angles are known, how can you find the third angle?

Back

Subtract the sum of the known angles from 180 degrees.

Front

What is the measure of each angle in an equilateral triangle?

Back

60 degrees

Front

If angle A is 40 degrees and angle B is 60 degrees, what is angle C in triangle ABC?

Back

80 degrees

Front

What is the relationship between the angles in a linear pair?

Back

They are supplementary, meaning they add up to 180 degrees.

Front

What is the measure of the missing angle if one angle is 47 degrees and the other is 133 degrees?

Back

180 - (47 + 133) = 0 degrees (not possible, check angles)

Front

If angle X is 28 degrees, what is the measure of its complement?

Back

62 degrees (90 - 28 = 62)

Front

What is the measure of the missing angle if one angle is 50 degrees and the other is 50 degrees in a triangle?

Back

80 degrees (180 - (50 + 50) = 80)

Front

What is the measure of the missing angle if one angle is 19 degrees and the other is 15 degrees in a triangle?

Back

146 degrees (180 - (19 + 15) = 146)