Adjacent angles have

(a)

no common interior, no common arm, no common vertex

(b)

one common vertex, one common arm, common interior

(c)

one common arm, one common vertex, no common interior

(d)

one common arm, no common vertex, no common interior

The sum of all angles at a point is

(a)

360°

(b)

180°

(c)

90°

(d)

0°

A line which intersects two or more lines in different points is known as

(a)

parallel lines

(b)

transversal

(c)

non-parallel lines

(d)

intersecting line

In the given figure, angles a and b are

(a)

alternate exterior angles

(b)

corresponding angles

(c)

alternate interior angles

(d)

vertically opposite angles

In the diagram, what is the value of angle x?

(a)

43°

(b)

44°

(c)

132°

(d)

134°

In the figure AB is parallel to CD. Find x˚, y˚ and z˚.

Can two adjacent angles be supplementary?

Can two obtuse angles form a linear pair?

Can two right angles form a linear pair?

Find x, y and z from the figure.

If \(\angle\)POQ = 23° and \(\angle\)POR = 62° then find \(\angle\)QOR

Find the missing angle.

Can two lines intersect in more than one point?

In the figure EF parallel to GH

In the given figure, the arms of two angles are parallel. If ∠ABC = 70°, then find
(i) ∠DGC
(ii) ∠DEF

(i) Which angles are corresponding angles to b°?
(ii) What is the measure of b°?
(iii) Which angles have the measure 68°?
(iv) Which angles have the measure 112°?

Construct bisector of the ∠ABC with the measure 80°.

In the following figure, show that CDIIEF

In the adjoining figure, the lines \(\overleftrightarrow { AB } \) and \(\overleftrightarrow { CD } \) intersect at 'O'. If ∠COD = 50°, find the measures of the other three angles.