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iGCSE (2021 Edition)

7.02 Measuring angles

Worksheet
Types of angles
1

Specify the following as either a:

  • Right angle
  • Acute angle
  • Obtuse angle
  • Reflex angle
  • Straight angle
a
b
c
d
e
f
g
h
i
j
2

For the following angles, decide if they are:

  • Close to 60\degree
  • Close to 120\degree
  • Equal to 90\degree
a
b
c
d
e
3

For each of the diagrams below, approximate the size of the angle:

a
b
c
Angle relationships
4

Classify each of the following pairs of angles using any of the terms in the list that apply:

  • Adjacent
  • Complementary
  • Supplementary
  • Vertically opposite
a
b
c
d
5

Determine whether each of the following pairs of angles are:

  • Complemetary angles
  • Supplementary angles
  • Neither
a
b
c
d
6

Among the marked angles in the diagram, find:

a

A pair of adjacent angles.

b

A pair of vertically opposite angles.

c

A pair of complementary angles.

7

In the following diagram find:

a

An angle that is vertically opposite to \angle CXD.

b

An angle that is supplementary with \angle AXB.

Unknown angles
8

Find the value of x in each of the following diagrams:

a
b
c
d
e
f
g
h
9

Find the value of the pronumerals in each of the following diagrams:

a
b
c
d
e
f
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Outcomes

0607E5.4A

Angles round a point. Angles on a straight line and intersecting straight lines. Vertically opposite angles.

0607C5.1

Use and interpret the geometrical terms: acute, obtuse, right angle, reflex, parallel, perpendicular, congruent, similar. Use and interpret vocabulary of triangles, quadrilaterals, polygons and simple solid figures.

0607C5.3

Angle measurement in degrees.

0607C5.4A

Angles round a point. Angles on a straight line and intersecting straight lines. Vertically opposite angles.

0607E5.1

Use and interpret the geometrical terms: acute, obtuse, right angle, reflex, parallel, perpendicular, congruent, similar. Use and interpret vocabulary of triangles, quadrilaterals, polygons and simple solid figures.

0607E5.3

Angle measurement in degrees.

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