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

the answer for this question is : 360°

step-by-step explanation:

we have been given a triangle   we need to tell which one of these is a triangle below to map onto itself.

360° rotation is the complete rotation which eventually leads to the same figure which is given.

the correct will be, that is 360° that will cause the triangle below to map onto itself.