STD VIII - Math (III)

A curve that begins and ends at the same point is a _________ curve.

A polygon having all sides and angles equal is called a _________ polygon.

How many diagonals are there in a hexagon?

The measure of each exterior angle of a regular polygon is 40°. How many sides does it have?

In a regular polygon, each interior angle is thrice the exterior angle. The number of sides of the polygon is ________.

Each interior angle of a regular decagon is _______.

The sum of the angles of a quadrilateral is ________.

A parallelogram in which all the sides are equal and each angle measures 90° is called a _________.

A quadrilateral is called a __________ if it has two pairs of equal adjacent sides and unequal opposite sides.

The ratio of the two sides of a parallelogram is 4 : 3. If its perimeter is 56 cm, what will be the lengths of its sides?