Page 54 - MAT KS3 Y8 Cambridge CheckPoint

5.1 Parallel lines

✦ Exercise 5.1

1 Look at the diagram.
a Write down four pairs of corresponding angles. u°
t°
b Write down two pairs of alternate angles. w° v°
p° q°
r°
s°

2 In the diagram, the size of one angle is 62 °.
Copy and complete these two sentences.
a Because corresponding angles are equal, angle .…. = 62 °.
b Because alternate angles are equal, angle .…. = 62 °. 62 ° a ° b °
d ° c °

3 In the diagram, the sizes of two angles are marked.
a What other angles are 105 °? 105° 75°
p° q°
b What other angles are 75 °?

r° s°
t° u°
Diagram not drawn accurately

4 Angle APY is marked on the diagram. X
Copy and complete these sentences.
a APY and CQY are … angles. P B
b APY and XQD are … angles. A
c APX and … are corresponding angles. D
d CQX and … are alternate angles. C Q
Y

5 The capital letter F has corresponding angles and
the letter Z has alternate angles.
a What other capital letters have corresponding angles?
b What other capital letters have alternate angles?

6 Look at the diagram. A C
Explain why AB and CD cannot be parallel lines.
X 50 °
S
130 ° 40 ° T
140 ° Y

D
B
Diagram not drawn accurately

52 5 Angles