The height AD is drawn in an isosceles triangle ABC with base AC. Determine the angles of triangle ADC if the angle C = 70 degrees.
| December 5, 2020 | education
triangle ABC – isosceles, respectively, angle A = angle C = 70
height lies perpendicular to the base, i.e. angle BDA = 90
since the sum of the angles of a triangle = 180, knowing the degree measure of two angles, you can find the third in this way
angle DBА = 180- (70 + 90) = 20
Answer: A = 70, B = 20, D = 90
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