Question 1 [1 mark]
70°
Mark scheme
- A [1] — cao 70°
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70°
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60°
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60°
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55°
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100°
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75°
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52°, 52°, 76°
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x = 40
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40°, 60°, 80°
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68.0 cm²
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65°
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80°
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80°
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40°
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x = 20
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45°
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45°, 60°, 75°
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60°
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90°
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8.2 cm
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31 m
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45°
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50°, 60°, 70°
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x = 20
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80°
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110°
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2.71 m²
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7:9
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t = 11
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22.6°, 67.4°, 90°
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