Math
posted by Sarah on .
A painter needs to cover a triangular region 61 meters by 66 meters by 72 meters. A can of paint covers 70 square meters. How many cans will be needed?

This question was asked and answered about two weeks ago. Were you the person who posted the question? Did you see the answer?
There is a formula for the area of a triangle in terms of the lengths of three sides, which I provided in my previous answer. Use that formula.
If you are asking this question for the fiorst time, go to
http://www.csgnetwork.com/herontriangleareacalc.html
Divide the area by 70 m^2 per can for the number of cans. 
would it be 1878.58 divided by 70m^2 =
4900/1878.58= 2.6 so 3 cans 
Yes. That is the correct area and number of cans