Ch. 5.4-5.7 Review

Front

What is the formula for the sum of interior angles in a polygon?

Back

(n−2)180, where n is the number of sides in the polygon.

Front

What is the measure of an exterior angle of a heptagon?

Back

51 degrees.

Front

The Pythagorean Theorem ONLY works on which triangle?

Back

Right triangle.

Front

What is the formula to find the missing side in a right triangle using the Pythagorean Theorem?

Back

a² + b² = c², where c is the hypotenuse.

Front

How do you calculate the measure of each exterior angle of a regular polygon?

Back

360° divided by the number of sides (n).

Front

What is the sum of the interior angles of a triangle?

Back

180 degrees.

Front

If a polygon has 8 sides, what is the sum of its interior angles?

Back

(8−2)180 = 1080 degrees.

Front

What is the relationship between the number of sides and the sum of exterior angles of any polygon?

Back

The sum of the exterior angles of any polygon is always 360 degrees.

Front

What is the measure of each interior angle of a regular pentagon?

Back

(5−2)180/5 = 108 degrees.

Front

What is the definition of a right triangle?

Back

A triangle that has one angle measuring 90 degrees.