Question

BD=2x, CD=8, BC=x, what is the numerical length
of BD

Answer 1

BD = 16

Explanation:

If points B, C, D are collinear and B-C-D, only then:

BD = BC + CD

2x = x + 8

2x - x = 8

x = 8

BD = 2x = 2*8 = 16

BD = 16