Question

Qual a area total de um cone equilatero cuja base tem raio 3cm?

A) 7 πcm²
B) 17 πcm²
C) 27 πcm²
D) 37 πcm²

Answer 1

At = 2πRG + ΠR²
At = πR ( 2G + R)
At = π.3 ( 6 + 3)
At = 3π. 9

At = 27π cm²

letra c)