A gable end on a house is an isosceles triangle with a base of 28 feet and a height of 10 feet. What length of lumber is needed to trim around this
triangular gable? Round the answer to the nearest tenth of a foot.

Koji is installing a rectangular window in an office building. the window is 823 feet wide and 534 feet high. the formula for the area of a rectangle is a=bh. what is the area of the window? enter your answer as a mixed number in simplest form in the box. $$ ft2