Formula: V = (2/3) π r 3.
Radius is 3cm.
So, now we can plug it in to solve for the volume.
V = (2/3) π 3^3
First, let's multiply 3^3.
3^3 = 27
Then, 27 x π = 84.82
After, multiply by 2/3.
84.82 x 2/3 = 56.55
Lastly, round 56.55 to the nearest tenth of a cubic centimeter.
56.55 = 56.6
Therefore the volume of a hemisphere with a radius of 3cm is 56.6cm^3.
The area to your problem is 280cm
Answer:
70
Step-by-step explanation:
Area equals bh
Answer:
7.9% or 8% rounded
Step-by-step explanation:
Just divide 35.99 by 449.99
Answer:
18,471.6 cubic inches of wax will be needed
Step-by-step explanation:
We want the volume that will be required for 210 candles. We first find the volume of 1 candle by using volume of cylinder formula. Then multiply that answer by 210 to find volume of wax needed to make 210 such candles.
Volume of Cylinder is given by the formula:

Where
r is the radius
h is the height
Given,
r = 2 in
h = 7 in
We substitute and find 1 candle volume:
Volume of 1 candle = 
Hence,
Volume of 210 candles = 87.96 * 210 = 18,471.6 cubic inches