A cone with a height of 9 cm has a volume of 48π cm3. What is the radius of the cone? (The volume of a cone is given by the formula V = 1 3 πr2h.) A) 2 cm B) 3 cm C) 4 cm D) 6 cm

4cm

Step-by-step explanation:

given volume = 48πcm³

height = 9cm

r = ?

the formula for finding the  volume of a cone  = 1/3 πr²h

v = πr²h/3

make r" the subject of the formula

by cross multiplying,

3v = πr²h

divide both sides by  πh

3v/πh =r²

r = √3v/πh

r= √3 × 48π/9π

π cancels π

r = √144/9

r = 12/3

r = 4cm

therefore the radius of the cone is 4cm

Khalid and Sue's Height together is 126 Inches. The difference is 6 inches, so therefore you subtract 6 from the total getting you 120 Inches. You do this with all of the problems for example: The first one. Sue is 72 inches and Khalid is 54. Add them together and subtract them by 6 to get your final answer. Please DO NOT quote me on this lol. This is how I read the question. I think this is right but I am not absolutely 100% sure. Hope this helps.