jamessmith86
04.07.2019 •
Mathematics
Aárea do círculo mede 196 π cm². qual a medida do seu raio?
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Ответ:
Step-by-step explanation:
The area formula for a circle is A = pi*r^2. Solve this for the radius (raio):
r^2 = A / pi, or r = plus or minus √(A/pi).
Here, r = +√(A/pi) = +√( 196 pi cm^2 / pi ) = +7.9 cm.
Check: A = pi*r^2. Does pi*(7.9 cm)^2 = pi*196 cm^2? Yes.
Ответ:
explanation:
298585-56697=241861