Предмет: Геометрия, автор: crylngenevolution

За даними рисунка знайдіть х. Відповідь обгрунтуйте.

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Ответы

Автор ответа: ludmilaksenija2005

Объяснение:

∠А и ∠D опираются на одну и ту же дугу ВС, значит

∠А=∠D=30°

∠АРВ=180-∠А-∠В=180-30-40=110°

х=∠ВРС=180-∠АРВ=180-110=70° - как смежные.

Вписанный угол опирающийся на диаметр -прямой, значит ∠NMP=90°

х=∠КМN=∠KMP-∠NMP=125-90=35°

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