Answer:
radius is 7 cm
Step-by-step explanation:
The volume of a cylinder is given by
V = pi r^2 h
We know the volume is 1323 pi and the height is 27
1323 pi = pi r^2 * 27
Divide each side by 27 pi
1323 pi /27pi = pi r^2 * 27/ 27 pi
49 = r^2
Take the square root of each side
sqrt(49) = sqrt(r^2)
7 = r
29 I think you were saying 79.75 divided by 2.75
The general formula for the volume of a square pyramid is
V = (1/3)b^2 h
If b increase by 50% their new length = 3b/2
Therefore the volume of the new pyramid is
V = (1/3) (3b/2)^2 h
= (1/3) 9b^2 / 4 h
= 3/4b^2 h Answer
Answer:
2
Step-by-step explanation:
2/3÷1/3
Changing the divide sign into multiply will invert the term after it
So we get
(2/3)*3
(2*3)/3
We get
2