The ABC triangle is rectangular. angle C = 90 degrees, CD-height, angle A = 60 degrees, CD = 6 √3. Find aircraft
| June 21, 2021 | education
The sum of the acute angles of a right-angled triangle is 90 °, so the angle B = 90 ° – 60 ° = 30 °;
Since CD is the height of triangle ABC, triangle BCD is right-angled, CB is the hypotenuse,
CD – leg, lying opposite an angle of 30 °. So CB = 2 * CD;
CB = 2 * 6 √3 = 12√3.
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