krudd2000oxkx24
krudd2000oxkx24 krudd2000oxkx24
  • 14-02-2019
  • Mathematics
contestada

(40 points best answer) (asap!)
In the image below, (AD) ̅ is an angle bisector, (AB) ̅=42, (AC) ̅=35, and (BC) ̅=44. Find the measure of m.

40 points best answer asap In the image below AD is an angle bisector AB 42 AC 35 and BC 44 Find the measure of m class=

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wegnerkolmp2741o
wegnerkolmp2741o wegnerkolmp2741o
  • 14-02-2019

Answer:

24 =m

Step-by-step explanation:

We can use the angle bisector theorem

AB           AC

--------- = ----------

BD            DC

Substituting in known values

42           35

------ = -----------

m         n

BC = 44  We know that 44 = m+n.  Solving for n  n = 44-m

42           35

------ = -----------

m          44-m

Using cross products

42(44-m) = 35m

Distribute

1848 -42m = 35m

Add 42m to each side

1848 -42m+42m = 35m+42m

1848 = 77m

Divide each side by 77

1848/77 = 77m/77

24 =m

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