In triangle ABC, angle C is 90 and angle A = 30 AB = 100, find BC.
| March 2, 2021 | education
In a right-angled triangle ABC, the unknown leg BC is opposite the angle A, the degree measure of which is 30 °. By the property of the leg, we have that it is equal to half the hypotenuse. According to the condition of our problem, the hypotenuse is equal to 100, which means that the BC is equal to 50. The formula looks like this:
BC = 1/2 * AB.
Answer: the BC leg is 50.
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