View Full Version : area of a triangle

06-27-2011, 10:39 PM
Hi guys it has been almost 20 years since I have done math. I have just gone back to school I need help with this problem my book is not giving me much detail. I kow the formula for the area of a triangle is A=1/2*b*h and the total angles equal 180 I am just not sure how to start this problem.
A triangle has a height of 10 meters and a base of b meters. What is the are of the triangle? If some one would please show me the steps. I think I will be ok after that. Thank you for all your help. :?

06-27-2011, 11:00 PM
The steps are substitution and substitution.

You are given h = 10 m and b = b m

The area is A = (1/2)*(b m)*(10 m) = 5b m^2

Notice how I put the (1/2) in parentheses? Your's was confusing.