Answer:
A) 1/6 & 1/12 (with borders) 1/3 & 1/6 (without borders)
B) 1/4 & 1/12 (with borders) 1/2 & 1/6 (without borders)
C) 1/4 & 1/4 (with borders) 1/2 & 1/2 (without borders)
Step-by-step explanation:
The radius of the completed cone is
... 18×(300°/360°) = 15
The height of the completed cone is found from the Pythagorean theorem:
... 15² + h² = 18²
... h = √99 = 3√11
The volume is given by
... V = (1/3)πr²·h = (1/3)π·15²·3√11
Dividing this value by π gives 225√11 cubic units.
The answer to this is true
