Imara used these steps to find the length of the hypotenuse of the right triangle. step 1: find the area of the square with side lengths of 20: 400 step 2: find the area of the square with side lengths of 15: 225 step 3: find the sum of the areas of the two squares: 625 step 4: state the length of the hypotenuse: 625 which best describes imara's error? she should have found the area of the square with side lengths of 15 first. she did not correctly calculate the area of the square with side lengths of 15. she should have found the sum of 15 and 20 and then squared the sum. she did not find the side lengths of the square with an area of 625.

The school track has eight lanes. each lane is 1.25 meters wide. the arc at each end of the track is 180. the distance of the home straight and the radii for the arcs in the 1st 4 lanes are given. s=85m r1=36.5m r2=37.75m r3=39m r4=40.25m part one: find the radii of lanes 5 through 8 of the track. show your work. part two: if max ran around lane one, how far did he run? show your work and explain your solution. part three: max wants to run a total of three laps around the track, choose two additional lanes (2-8) for him to run and find the distance around those two lanes. show your work and round to the hundredths. part 4: based on your lane choices in part three, what was the total distance max ran in the three laps around the track?