Предмет: Геометрия, автор: marinka31

Плоскость разделена прямой АВ на две полуплоскости.В одной из них построены углы : угол АВС=26 град.,угол СВД=35 град.,угол ДВК=85 град.,угол КВТ=105град. Найти угол АВТ-?

Ответы

Автор ответа: Hrisula

Точка В - вершина всех данных углов. Даны они все последовательно ( обратите внимание -АВС,→угол СВД,→угол ДВК,→угол КВТ).Пусть В - центр окружности. Сумма всех углов с вершиной В равна 360°градусов. Улов всего 5, и величины 4-х из них известны. Сложим их:26°+35°+85°+105°=251°.На оставшийся угол АВТ остается360°-251°=109°

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True
False
Doesn't say
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False
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False
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