In an isosceles triangle, one of the angles is 120 degrees, and the base is 10 cm. Find the height drawn to the side.
| September 12, 2021 | education
Triangle with sides a; a; h = 10 cm; angle <B = 120 °, then <A = <C = (180 ° – 120 °) / 2 = 60 ° / 2 = 30 °;
Height h = in / 2, as a leg against an angle <C = 30 °; h = in / 2 = 10 cm / 2 = 5 cm.
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