year 8 maths

Chapter review
517
10 ABCD is a parallelogram. Based on the information supplied in
the diagram, which test could be used most easily to prove that
△ ABC ≡ △CDA .
A
B
A AAS B RHS C SAS
D AAA
E SSS
D
C
Short-answer questions
1 Copy these shapes and draw the reflected image over the mirror line.
a b c
d e f
2 The triangle A(1, 2), B(3, 4), C(0, 2) is reflected in the given axis. State the coordinates of the image
points A′ , B′ and C′ .
a x -axis
b y -axis
3 How many lines of symmetry do these shapes have?
a square b isosceles triangle
c rectangle d kite
e regular hexagon f parallelogram
4 Write the vectors that translate each point A to its image A′ .
a A(2, 5) to A′(3, 9) b A(−1, 4) to A′(2, −2)
c A(0, 7) to A′(−3, 0) d A(−4, −6) to A′(0, 0)
5 Copy these shapes and draw the translated image using the given translation vector.
3
−2
0
a
b
c
[ −1]
[ 2]
[ −3]
y
y
y
2
1
–2
O
–1
1 2
–2
x
2
1
–2 –1
O
–1
2
–2
x
2
1
–2 –1
O
–1
1 2
–2
x
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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