Shape and Space 10
2 marks · EasyCalculate the area of a triangle with sides 9.0 cm and 4.5 cm and included angle 45°. Give your answer to 2 decimal places.
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14.34 cm^2 (±0.05)
Common mistakes: wrong angle unit (radians not degrees)
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Marking points
M1 · 1 mark · Uses area formula .
A1 · 1 mark · Area calculated as 14.34 cm² to 2 decimal places.
Worked solution
(rounded to 2 d.p.).