TEKS 7.11C

Front

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

Back

180 degrees.

Front

If one angle of a triangle measures 47 degrees, what is the measure of the other angle if the third angle is 86 degrees?

Back

47 degrees.

Front

In an isosceles triangle, if the base angles are equal, how do you find the measure of the third angle?

Back

Use the equation: 2(base angle) + third angle = 180.

Front

What equation represents the relationship between the angles in a triangle?

Back

Angle 1 + Angle 2 + Angle 3 = 180 degrees.

Front

If two angles in a triangle measure 48 degrees each, what is the measure of the third angle?

Back

84 degrees.

Front

What is an isosceles triangle?

Back

A triangle with at least two equal sides and two equal angles.

Front

How do you find the measure of a missing angle in a triangle?

Back

Subtract the sum of the known angles from 180 degrees.

Front

What is the measure of each base angle in an isosceles triangle if the third angle is 96 degrees?

Back

42 degrees.

Front

If the angles of a triangle are represented as x, y, and z, what is the equation to find the missing angle if x = 60 and y = 70?

Back

x + y + z = 180, so z = 180 - (60 + 70) = 50.

Front

What is the definition of complementary angles?

Back

Two angles that add up to 90 degrees.