If you have a protractor that only measures 0 to 90 degrees, explain how to use this protractor to find the measure of an obtuse angle.

Does it have a small hole in the centre? If so, use a pen on that and rotate the protractor around the point and add the dgrees

You would have to measure 90 degrees first then mark what you measured so you don't measure it again and then from the first 90 degrees keep measuring until you get the measurement you need it but mark every 90 degrees so you don't measure it again   

Jim has run 5/6 of a mile so far. i hope that answers your question! good luck : )