A carpenter is framing a wall that is 8 feet high and 15 feet long. If the carpenter wants to be sure that the sides of the wall meet at right angles, then what should the diagonal measurement of the wall be?
a. 13ft
b. 17ft
c. 19ft
a² +b² = c² 8² + 15² = c² 64 + 225= c² 289=c² 17=c The diagonal measurement should be 17 feet. The diagonal is the hypotenuse of a right triangle formed with the other two sides.
