GTPC: Unit 3 Basic Terms in Trigonometry

Front

What is the definition of supplementary angles?

Back

Supplementary angles are two angles whose sum is 180 degrees.

Front

What is the degree measure of a right angle?

Back

A right angle measures 90 degrees.

Front

Convert 45 degrees into radians.

Back

45 degrees is equal to π/4 radians.

Front

What is the sum of angles in a triangle?

Back

The sum of angles in a triangle is always 180 degrees.

Front

If one angle is 70 degrees, what is the measure of its complementary angle?

Back

The complementary angle is 20 degrees (90 - 70 = 20).

Front

What is the formula to find the measure of an angle in degrees from radians?

Back

Degrees = Radians × (180/π).

Front

Find the value of x if (6x - 4) + (8x - 12) = 180.

Back

x = 12.

Front

What is the definition of an acute angle?

Back

An acute angle is an angle that measures less than 90 degrees.

Front

Convert -18.515° into degrees, minutes, and seconds.

Back

-18°30'54".

Front

If two angles are supplementary and one angle is represented as (8x - 12)°, find the other angle if x = 10.

Back

The other angle is 100 degrees.