(b) One of the angles below is a reflex angle. Circle the correct answer. [1]
45° 90° 135° 180° 225°
(c) The diagram below shows two angles on a straight line. The large angle is 5 times the size of the small angle. Find the size of each angle. [2]
Diagram not drawn to scale
Small angle = …………… ° Large angle = …………… °
Mark scheme (a)
Scheme
Marks
Comments
65 (°)
B1
Allow ±2°
Mark scheme (b)
Scheme
Marks
Comments
225°
B1
Mark scheme (c)
Scheme
Marks
Comments
(Small angle = 180 ÷ 6 =) 30(°)
B1
Check diagram, though answer space takes precedence.
(Large angle = 5 × Small angle =) 150 (°)
B1
F.T. 'their small angle' × 5 or 180 - 'their small angle ', provided answer is less than 180°. If no marks awarded, award B1 for both correct angles given in reverse.
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