Which statements about angles are true? Check all that apply.

Supplementary angles have angle measures that add up to 180°.

There are three types of angles: acute, straight, and right.

Angles that are a linear pair have measures that add up to 180°.

Straight lines are also straight angles that measure 180°.

Complementary angles have angle measures that add up to 90°.

The answer is : A,C,D,E

A,C,D,E

Step-by-step explanation:

The first one is true because in fact, supplementary angles' measures add up to 180°.

The second one is false because there are 5 types, not 3. These are the types:

acute angle-an angle between 0 and 90 degrees.

right angle-an 90 degree angle.

obtuse angle-an angle between 90 and 180 degrees.

straight angle-a 180 degree angle.

reflex angle- a angle between 180 and 360 degrees.

Third is true too because linear pair means two angles that form a straight line, or 180°.

Fourth is true because straight Angle theorem states that all the straight angles are 180 degrees. If the legs are pointing exactly in the opposite directions, then it forms a straight angle.

Last one is true because by definition complementary angles always form a right angle, which is 90°.

Hope it helps!

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Step-by-step explanation:

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