Answer:
A.
Step-by-step explanation:
Diameter = 6 cm
SO,
Radius = 3 cm
Now
Slant Height = 5 cm
for Finding the height , We'll use Pythagorean Theorem
c² = a²+b²
5² = 3² + b²
b² = 5²-3²
b² = 25-9
b² = 16
Taking sqrt on both sides
b = 4
So
Height = 4
Now Finding the volume of cone
V = 1/3(πr²h)
V = 1/3(π)(3)²(4)
V = 12π cm³
