year 8 maths

360 Chapter 6 Angle relationships and properties of geometrical figures 1
Exercise 6B
REVISION
UNDERSTANDING AND FLUENCY
1–5 2–6(½)
3–6(½)
1 Two parallel lines are cut by a transversal. Write the missing word (equal or supplementary).
a Corresponding angles are _______________.
b Cointerior angles are _______________.
c Alternate angles are _______________.
2 Name the angle that is:
a corresponding to ∠ABF
b corresponding to ∠BCG
c alternate to ∠FBC
d alternate to ∠CBE
e cointerior to ∠HCB
f cointerior to ∠EBC
g vertically opposite to ∠ABE
h vertically opposite to ∠HCB
A
3 State whether the following pairs of marked angles are corresponding, alternate or cointerior.
For each diagram write down the relationship between a° and b° .
B
F
E
C
H
G
D
a
b a°
a°
b°
b°
c
d
a° b°
b°
a°
e
a°
f
b°
a° b°
Example 2a
4 Find the value of the pronumerals in these diagrams, giving reasons.
a
b
110°
120°
b°
a°
c° a°
b°
Cambridge Maths NSW
Stage 4 Year 8 Second edition
ISBN 978-1-108-46627-1 © Palmer et al. 2018
Cambridge University Press
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