The measures of the sides of a right triangle form an arithmetic sequence of common difference 2. What are these measures?

Answer 1

(x-2)^2 + x^2 = (x+2)^2
2x^2-4x+4 = x^2+4x+4
x^2-8x=0
x = 0 or 8

0 is out, so the sides are

6,8,10

Answer 2

Linda, Anne,Denise each decided to knit a scarf. Linda knit one 1 yard long Anne knit one 4 feet Denise knit one 2 yards how many did they knit altogether