question 9
y = k x
triangle A is 8 yd, 15 yd and 17 yd
triangle B is 48 yd, 90 yd, and 102 yd
constant of proportionality between triangles: lets y perimeter of triangle 1 and x perimeter of triangle 2 or total of sides in each triangle.
y= 40yd
x=204yd
k= y/x= 1/6 is constant of porportionality.