Question

in triangle abc the points D and e are on the sides CA and CB respectively such that De is parallel to a b a d equal to X DC = X + 3 equal to x minus 1 and c = x then find the value of x

Answer 1

substituting the values, we get,

x/x-2 =x+2/x-1

 

By cross multiplying, we get,

 

x(x-1) =(x+2)(x-2)

 

x2 -x = x2 -4

 

x=4