Bryant Lam Hong Sheng's answer to Josephine's Secondary 3 E Maths question.
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By realising that BC = 100 steps x 30 cm each, you can eventually get BC = 30m. Hence, by using trigo (tan in this case), you can see that tan 38 degrees will equal to opposite over adjacent so tan 38 = AB/BC.
Date Posted:
8 years ago
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