Bd bisects abc solve for x and find m abc m abc=(4x-16)

since BD bisects the angle, each half has measure

1/2 (4x-16) = 2x-8

and why do you say "find m abc" when you immediately say "m abc = 4x-16"?

Get a grip, and solve for x, using the diagram you so poorly describe.

To solve for x and find mABC, we need to use the angle bisector theorem. The angle bisector theorem states that when a line bisects an angle, it divides the opposite side into two segments that are proportional to the lengths of the other two sides of the triangle.

In this case, we have:

mABC = (4x - 16)

Let's assume that BD divides side AC into two segments, AD and DC.

Using the angle bisector theorem, we have:

AD / CD = AB / BC

Since BD divides AC into two segments, we can write:

AD = (AB * AC) / (AB + BC)

CD = (BC * AC) / (AB + BC)

We know that AD + CD = AC. So, we can substitute the values of AD and CD into the equation:

(AB * AC) / (AB + BC) + (BC * AC) / (AB + BC) = AC

Simplifying the equation:

[AB * AC + BC * AC] / (AB + BC) = AC

Multiplying both sides of the equation by (AB + BC) gives:

AB * AC + BC * AC = AC * (AB + BC)

Distributing AC on the right side of the equation:

AB * AC + BC * AC = AB * AC + BC * AC

Now, we can equate the coefficients on both sides of the equation:

4x - 16 = AB + BC

Simplifying the equation:

AB + BC = 4x - 16

Now, we can substitute the value of AB + BC into the previous equation:

AC = 4x - 16

Since mABC = (4x - 16), we can rewrite the equation as:

AC = mABC

Therefore, from the angle bisector theorem, we have that AC is equal to mABC.

To find x, we can equate the coefficients in the equation:

4x - 16 = 4x - 16

This equation is an identity, which means that x can be any real number.

So, the value of x can be any real number, and mABC is equal to AC.