TRIG - what do you recall…
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Ex4.01 – Trig Ratios
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Round to the nearest degree
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Ex4.02 – Find length of side
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Ex4.03 – Find the size of the angle to nearest minute
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Ex4.04 Angle of elevation & depression / bearings
Compass bearing:
True bearing
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Tamworth is on a bearing of 3400 from Newcastle. What is the bearing of Newcastle from
Tamworth?
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Ex 4.05 The sine rule
Find the value of the pronumeral correct to 1 dp
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Triangle ABC has ∠𝐵 = 53! , 𝐴𝐶 = 7.6𝑐𝑚 𝑎𝑛𝑑 𝐵𝐶 = 9.5cm. Find ∠𝐴 to the nearest degree
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Ex 4.06 The cosine rule
Find the value of the pronumeral correct to 1 dp
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Ex 4.07 Area of a triangle
Find the area of the triangle correct to 1 dp