The ratio of the measure of an interior angle of a regular octagon to the measure of each of its exterior angles is:

• 1:2

• 1:3

• 2:3

• 3:1

The sum of all interior angles of a regular polygon is 1080 degree. The number of sides of the polygon is:

• 8

• 6

• 10

• 9

Each interior angle of a regular pentagon measures:

• 72 degree

• 120 degree

• 90 degree

• 108 degrees

Three angles of a quadrilateral are 54 degree, 66 degree, 70 degree respectively, the measure of the 4rth angles is:

• 170 degree

• 70 degree

• 110 degree

• None of these

The sum of the interior angles of a regular pentagon is:

• 360 degree

• 540 degree

• 720 degree

• 900 degrees

How many diagonals are their in the in a decagon?

• 19

• 29

• 35

• 45

How many diagonals are their in the in a hexagon?

• 8

• 6

• 7

• 9

A polygon has 27 diagonals. The number of sides of the polygon is:

• 12

• 11

• 10

• 9

Two angles of a triangle measures 48 degree and 112 degree respectively, the measures of the third angle is:

• 30 degree

• 20 degree

• 40 degree

• None of these

The sum of the interior angles of a regular hexagon is:

• 360 degree

• 540 degree

• 720 degree

• 900 degrees