Enter your answer as a decimal. round only your final answer to the nearest tenth.

In order to solve this this problem, you first need to know the formula of a triangle which is b×h/2 (First measure the bottom of the triangle and find how long that is and then measure the height of the triangle and do the same thing. Then multiply both of those measurements together and with your answer divide it by two.) And of course your answer should be a decimal, so if you need help with entering your answer as a decimal or rounding to the nearest tenth or any other problem that I can hopefully answer, you can send me a message on brainy. Good luck!
(I put a picture of an example of how to find the area of a triangle) Click on the image to enlarge just in case you can not see the whole picture.

The answer is 225 miles per 4.5 hours. hope this ; )