Arthur D. answered 12/13/17
Tutor
4.9
(274)
Forty Year Educator: Classroom, Summer School, Substitute, Tutor
x=one leg
x+1=hypotenuse
7m=second leg
(x+1)^2=x^2+7^2
x^2+2x+1=x^2+49
subtract x^2 from both sides
2x+1=49
2x=48
x=24m
x+1=25m