Answer:
167.6 cm³
Step-by-step explanation:
the volume of a cone :
ground area × height / 3 = pi×r² × height / 3
r = 4 cm
height = 10 cm
pi×4² × 10 / 3 = pi×16×10/3 = pi×160/3 = 167.6 cm³
145° is the correct answer
I think it's the second equation. I could be wrong but I think that's what it is