Answer:
18
Step-by-step explanation:
7b-2+3b+2=180
10b=180
b=18
∠ACD= ∠BAC ( reason: CPCTC)
64 hope it helps
Cone volume = [PI * radius ^ 2 * height] / 3 therefore,
Cone height = [3 * Cone Volume] / (PI * radius^2)