Предмет: Геометрия, автор: kiralos02

В треугольнике ABC угол A равен 50 градусов,а угол B в 12 раз меньше угла C.Чему равна градусная мера угла C?

Ответы

Автор ответа: davosyr01
0
пусть угол С=х,тогда угол В=х:12
так как сумма углов треугольника 180градусов,то х:12+х+50=180
х:12+х=130
приводим к общему знаменателю- х:12+12х:12=130
13х:12=130
13х=12*130
13х=1560
х=120
ответ: угол С=120 градусам
Автор ответа: davosyr01
0
не успела(
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Change to reported speech.
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3. The woman asked,” How long have you worked as a tour guide ?” The woman wanted to know _______________________________________________________ .
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8. He said to his son, “Don’t be afraid !” He told his son _____________________________________________________________________ .
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10. The biologist wondered, “What kind of marine animals are there in the park”? The biologist wondered ____________________________________________________________ .
11. The journalist asked, “Have you published any interesting stories yet?” The journalist wanted to know _____________________________________________________ .
12. He said to her, “I may not be able to meet you at the airport.” He told her he ______________________________________________________________________ .
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