Sum of Interior Angles Big Practice

Front

What is the name of a triangle with two equal sides?

Back

Isosceles

Front

If all sides of a triangle are equal, what can we say about its angles?

Back

All angles are congruent.

Front

What is the measure of the missing angle if two angles are 70° and 60°?

Back

50°

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.

Front

What is the measure of each angle in an equilateral triangle?

Back

60°

Front

How many degrees are in the sum of the interior angles of a triangle?

Back

180°

Front

What type of triangle has one angle greater than 90°?

Back

Obtuse triangle.

Front

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

Back

360°

Front

If a polygon has 5 sides, what is the sum of its interior angles?

Back

540°

Front

What do you call a triangle with all sides of different lengths?

Back

Scalene triangle.