Types of Angles + Pythagorean

Front

What is a vertical angle?

Back

Vertical angles are the angles opposite each other when two lines intersect. They are always equal.

Front

Name the vertical angle to ∠2.

Back

∠1

Front

What is the Pythagorean Theorem?

Back

The Pythagorean Theorem states that in a right triangle, the square of the length of the hypotenuse (c) is equal to the sum of the squares of the lengths of the other two sides (a and b): a² + b² = c².

Front

What type of triangle does the Pythagorean Theorem apply to?

Back

Right triangle.

Front

How many degrees are in a straight angle?

Back

180 degrees.

Front

What is an acute angle?

Back

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

Front

What is an obtuse angle?

Back

An obtuse angle is an angle that measures more than 90 degrees but less than 180 degrees.

Front

What is a right angle?

Back

A right angle is an angle that measures exactly 90 degrees.

Front

If one angle is 30 degrees, what is the measure of its complement?

Back

60 degrees (since complementary angles add up to 90 degrees).

Front

If one angle is 120 degrees, what is the measure of its supplement?

Back

60 degrees (since supplementary angles add up to 180 degrees).