SOLUTION: the length and width of a rectangle are 15 cm and 8 cm. what is the length of the diagonal in centimeters?

Algebra ->  Rectangles -> SOLUTION: the length and width of a rectangle are 15 cm and 8 cm. what is the length of the diagonal in centimeters?       Log On


   

Question 942950: the length and width of a rectangle are 15 cm and 8 cm. what is the length of the diagonal in centimeters?
Answer by macston(5194) About Me  (Show Source):
You can put this solution on YOUR website!
The diagonal is the hypotenuse of the right triangle formed with legs L and W, so
diagonal%5E2=length%5E2%2Bwidth%5E2
diagonal%5E2=%2815cm%29%5E2%2B%288cm%29%5E2
diagonal%5E2=225sqcm%2B64sqcm
diagonal%5E2=289sqcm
diagonal=sqrt%28289sqcm%29
diagonal=17 cm