Question

CD is given with vertices C(a,b) and D(2a,) Find the lengt of C^1 D^1 the image of CD after a dialation with a scale factor of 2

Answer 1

I think you forget to type the vertices of dot D. We suppose D is (2a, x). Then we can get the length of CD is
`\sqrt{(2a-a)^(2)+ (x-b)^(2) }`. So the length of C^1D^1 after dilation with scale factor of 2, it is 2
`\sqrt{a^(2)+ (x-b)^(2) }`.