Problema Solution
the flower garden has the shape of a right triangle. 17 feet of a perennial border forms the hypotense of the triangle. and one leg is 7 ft longer than the other leg. Find the lengths of the legs.
Answer provided by our tutors
let one leg then the other leg x 7 x then we obtain the quadratic equation
x2+ (x+7)2=172
x2+x2+14x+49=289
2x2+14x=240
x2+7x-120=0
D=49+480=529=232
x=(-7+23)/2=8
means a leg is 8 feet the other 8 +7 = 15 feet