In triangle ABC, angle C is 90 °, AC = 20, tgA = 0.5. Find BC.
| November 29, 2020 | education
Decision:
1) tg A = BC \ AC (by definition), therefore, to find BC (dividend), you need AC * tg A
BC = AC * tg A
BC = 20 * 0.5 = 10 (cm)
Answer: BC = 10 cm.
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