The height BD is drawn from the vertex of the right triangle ABC. Find the angle knowing that angle A is 70 degrees.
| December 8, 2020 | education
Since the triangle is rectangular, let the angle C = 90.
BD is the height, BD is perpendicular to the AC.
DAB angle is 70
ADB is 90 degrees. Therefore, the angle ABD is 180- (90 + 70) = 20 degrees.
Then the angle CBD = ABC – ABD = 90 – 20 = 70
Answer: 70
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