In an isosceles triangle ABC with a base AC, the lateral side AB is 10, and cos A = 0.3√11.
| May 14, 2021 | education
In an isosceles triangle ABC with a base AC, the lateral side AB is 10, and cos A = 0.3√11. Find the height drawn to the base.
cos A = AH / AB = 0.3 / 11. ВН – height to the side of the speaker. AH = AB * cos A = 10 * 0.3 = 3. Height BH = √ (AB ^ 2 – AH ^ 2) = √ (100 – 9) = √91.
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.
