Вопрос школьника по предмету Геометрия
В равнобедренном треугольнике ABC с основанием AC отрезок BE-высота.
Найдите
∠ABC, если AE=4,1 см и
∠ABE=30°
Ответ учителя по предмету Геометрия
Вот решение, единственное, не поняла, зачем дан отрезок АЕ, или в задаче еще что-то надо найти ?
Похожие вопросы от пользователей
1. Demand for oil is 12 percent higher than it was a decade ago. Gas demand is 30 percent higher.
2. Yet, at the moment consumers and government seem to be in denial. They refuse to accept their own responsibility.
3. His natural aptitude for native languages induced him to study African tongues and dialects and it was not many years before he was appointed to the Chair of Asiatic and African Languages which he now occupied.
4. He has shown that he has all the human feelings of one of the computers put out by the International Business Machine Corp.
5. I disagree with those in our industry who believe that the only answer to climate change and global warming is to question the science.
6. Because our business is growing rapidly, this is a reduction of more than 40 percent from the level we would have reached if we took no action at all.