SOLUTION: Triangle ABC has an exterior angle, <DAB, and two remote interior angles, <b and <C. If m<DAB= 11x+13, m<B= 7x-7 and m<= 9x, solve for x and find m<A, m<B, m<C and m<DAB p

Question 245415: Triangle ABC has an exterior angle,

please help me solve this, i have been working on this for two days and all i have been getting is decimals for my measurements
Answer by stanbon(75887) (Show Source): You can put this solution on YOUR website!
Triangle ABC has an exterior angle, ----------------------
The exterior angle is DAB and it has measure 11x+13
It sounds like the corresponding interior angle is
angle B and it has measure 7x-7
---
If that is true,
11x+13 + 7x-7 = 180 degrees
18x + 6 = 180
18x = 174
x = 9 2/3
------------------
Then measure of angle B is 7(29/3)-7 = 60 2/3 degrees
And 9x = 87 degrees.
=======================
Cheers,
Stan H.
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