Angles
Common Entrance Mathematics

Each exterior angle of a regular polygon is 45°. How many sides does it have?

Three angles of a quadrilateral are 80°, 95° and 110°. Find the fourth angle.

An angle of 120° is called a/an:

The angle at the top of an isosceles triangle is 40°. Find each of the two equal base angles.

Two angles on a straight line are 3x and 6x. Find the value of x.

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

What is the size of each interior angle of a regular hexagon?

Two angles of a triangle are 50° and 70°. Find the third angle.