In triangle ABC, angle C = 60 degrees, angle B = 90 degrees. Height BH is 2 cm find AB.
| April 26, 2021 | education
Since BH is the height of triangle ABC, triangles BCH and ABН are rectangular.
In a right-angled triangle BCH, the angle CBH = (90 – BCH) = (90 – 60) = 30.
In a right-angled triangle ABH, the angle ABH = (90 – CBH) = (90 – 30) = 60, then the angle BAH = (90 – 60) = 30.
The BH leg lies against an angle of 30, then AB = 2 * BH = 2 * 2 = 4 cm.
Answer: The length of the AB side is 4 cm.
One of the components of a person's success in our time is receiving modern high-quality education, mastering the knowledge, skills and abilities necessary for life in society. A person today needs to study almost all his life, mastering everything new and new, acquiring the necessary professional qualities.
