Please help, I need help with part C but other parts help too

The larger triangle ABC is similar to the smaller triangles as follows.

Triangle ABC ~ triangle DBA by AA similarity because they share angle B and angles A and D are right angles.

Triangle ABC ~ triangle DAC by AA similarity because they share angle C and angles A and D are right angles.

So you can set up the following proportions, seeing that the answers are involving either AC^2 or AB^2.

AB/BD = BC/AB When you cross multiply, you get AB^2 = BC times BD, which is the first answer listed.

Using the other proportion, AC/CD = BC/AC, when you cross multiply, you get AC^2 = BC times CD, which is not one of the answers listed.

the answer to the question is a

step-by-step explanation:

it has the same slope and the same y-intercept.

y + 11 = -7/9(x - 18)

y + 11 =-7/9x + 14

b

y = -7/9x + 3

y-intercept (0, 3)

correct answer is option b.

step-by-step explanation:

the true statement about geometric figure is option b that is one line can be drawn through all three points.

if three points are on the same plane, they can be connected by a line.