In triangle ABC, the angle is A = 20 degrees, B = 70 degrees, AC = 8cm and BC = 6cm. Find the AB side.

univerkov | November 29, 2020 | education

Angle C = 180- (20 + 70) = 90 ° => Triangle ABC – rectangular. Find AB by the Pythagorean theorem: AB ^ 2 = AC ^ 2 + CB ^ 2 = 64 + 36 = 100 AB = 10
Answer: 10 cm

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