Предмет: Геометрия, автор: godvar976

Знайти площу прямокутного трикутника у якого один з катетів дорівнює 2см,а гіпотенуза корінь квадратний з 13 см

Ответы

Автор ответа: albina345p

Ответ:

3 cm²

Объяснение:

За теоремою Піфагора знайдемо другий катет

b²=c²-a²

b²=13-4

b²=9

b= $\sqrt{9}$

b=3

S=(a*b)/2

S=(2*3)/2

S=6/2=3 $cm^{2}$

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