Предмет: Геометрия, автор: IngaNovikova

решите 7 и 8 с описанием

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Автор ответа: Cherelady

0

7) тк дуга 108, угол LMO тоже 108.
угол Е в два раза меньше угла LMO, <E = 108/2=54
треугольник равнобедренный, поэтому углы L и M равны и их сумма 180-<E=180-54=126. тогда <L=<M=126/2=63

8) одна сторона треугольника - диаметр, следовательно тругольник прямоугольный => <ACB = 90
<COA = 48 => <B=48/2=24

<A=180-<B-<ACB=90-24=66

Автор ответа: 960pandaBear

0

7. ответ: угол L и M =63° 8. угол А=66° угол В =24°

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