Question

num cilindro reto, o raio da base mede 2 cm e a altura, 14 cm. calcule
a) area total
b) volume

Answer 1

ab=pi^2
ab=2^pi
ab=4pi

al=2pir*h
al=2pi2*12
al=48pi

at=2*ab+al
at=2*4+48
at=8+48pi
at=56pi

v=ab*h
v=4pi*12
v=48pi

ab=area da base
al=area lateral
at=area total
v=volume