8.1 - 8.8 Review 21-22

Front

What is the formula for the perimeter of a triangle?

Back

The perimeter of a triangle is the sum of the lengths of its three sides: P = a + b + c.

Front

What is a 45-45-90 triangle?

Back

Front

How do you find the length of the hypotenuse in a 30-60-90 triangle?

Back

Front

What is the relationship between the angles in a triangle?

Back

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

Front

How do you calculate the missing angle in a triangle?

Back

To find a missing angle in a triangle, subtract the sum of the known angles from 180 degrees.

Front

What is the formula for the area of a triangle?

Back

Front

What is the Pythagorean theorem?

Back

Front

What is the value of the sine of a 30-degree angle?

Back

Front

What is the value of the cosine of a 60-degree angle?

Back

Front

What is the value of the tangent of a 45-degree angle?

Back

The tangent of a 45-degree angle is 1.