Trig Ratio Basics

Front

What is the definition of a right triangle?

Back

A right triangle is a triangle that has one angle measuring 90 degrees.

Front

What are the three sides of a right triangle called?

Back

The three sides are called the hypotenuse, opposite side, and adjacent side.

Front

What is the hypotenuse in a right triangle?

Back

The hypotenuse is the longest side of a right triangle, opposite the right angle.

Front

What is the formula for the sine of an angle in a right triangle?

Back

Front

What is the formula for the cosine of an angle in a right triangle?

Back

Front

What is the formula for the tangent of an angle in a right triangle?

Back

Front

How do you identify the adjacent side in a right triangle?

Back

The adjacent side is the side next to the angle of interest that is not the hypotenuse.

Front

What is the relationship between the sine and cosine of complementary angles?

Back

Front

What is the Pythagorean theorem?

Back

Front

What is the value of Sin(30°)?

Back