Really isnt a question for a assignment but i need , so we have a test to day on the exponents and i always have trouble remembering, so if you have a good way of remembering exponents

Arectangular lawn is 65 m long and 34 m wide. over time, people have walked along a diagonal as a shortcut and have created a straight path. what is the length of the path, to the nearest tenth of a meter? enter your answer as a deicmal in the box. m