If three angles of a quadrilateral are 90°, 100° and 110°, then find the measure of fourth angle.

2

(a)

What is the measure of each interior angle of a regular pentagon?

2

(a)

In the given figure, find the value of x+ y+ z + w + s.

2

(a)

How many sides does a regular polygon have, if each of its interior angles is 165°?

2

(a)

Is it possible to have a regular polygon with measure of each exterior angle as 22°?

2

(a)

In a parallelogram ABCD, if ㄥA = 105°, then find the other three angles.

2

(a)

If two adjacent angles of a parallelogram are in the ratio 2:3, then find the measure of angles.

2

(a)

In the figure, PQRS is a parallelogram. Find x, y and z.

2

(a)

In a parallelogram if measures of two adjacent angles are in the ratio of 4:5, find all the angles

2

(a)

ABCD is a parallelogram. Given that OC = 4 ern and DB is 5 em more than AC, find OD.

2

(a)

If the exterior angle of a regular polygon is 72°, then what is the number of sides of the polygon?

2

(a)

In the following figure, find the measures of x, y, z and w.

2

(a)

Is a rectangle regular polygon? Why?

2

(a)

Is an equilateral triangle a regular polygon? Why?

2

(a)

Identify other pairs of adjacent angles of the parallelogram.

2

(a)