In the diagram below, KLMNP is a regular pentagon. LKS and MNQ are straight lines. Find the value of x + y. No need to write the unit.

In diagram below, PQRSTU is a regular hexagon QUV is a straight line. Find the value of x. No need to write the unit.

In diagram below, PQRSTU is a hexagon. UPE, PQF, QRG, RSH and UTJ are straight lines. Find the value of x. No need to write unit.

In Diagram below, A, B, C, D and E are vertices of a 9 sided regular polygon. Find the value of x. No need to write unit.

Find the value of d. No need to write the unit.

Find the value of k. No need to write answer.

The diagram shows a pentagon. What is the size of the angle x°?

The exterior angles of a heptagon are y°, 2y°, 3y°, 3y°, 4y°, 5y° and 6y°. What is the value of y?

The exterior angles of an octagon are x°, 2x°, 3x°, 4x°, 5x°, 6x°, 7x°, and 8x°. What is the size of the smallest interior angle of this octagon?

The interior angle for a regular polygon is  $120\degree$ . How many sides does the polygon have?  

In a regular polygon, the interior angle is five times that of the exterior angle. Find the number of sides of the polygon.