Given an isosceles triangle ABC, angle B = 120 degrees, side AC = 2 roots of 21. Find the length of the median AM.
| December 6, 2020 | education
The ABC triangle is isosceles, which means that the angle at the base is (180-120): 2 = 30 °. The side opposite to 30 ° is equal to half the hypotenuse, that is, AM = √2.
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