Предмет: Геометрия, автор: haliulinamilka

Найди периметр треугольника ABC, если его вершины имеют следующие координаты: A(1;2), B(10;9) и C(4;11).
р=корень?+?корень?

Аноним: Это что " р=корень?+?корень?"
ужнеужели: Периметр, красавица, периметр. Она не очень в этом разбирается, будьте снисходительны.

Ответы

Автор ответа: Аноним
9

Ответ:

5√10+5√6=5*(√10+√6)

Объяснение:

АВ=√(10-1)²+(9-2²)=√9²+7²=√81+49=√150=√6*25=5√6

ВС=√(4-10²)+(11-9)²=√(-6)²+2²=√36+4=√40=√4*10=2√10

АС=√(4-1)²+(11-2)²=√3²+9²==√9+81=√90=√9*10=3√10

Р=3√10+2√10+5√6=5√10+5√6

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