So I have two questions I really need help if someone could explain how to do it. It would mean a lot. I'm swamped with Homework and Math is my worst subject.
mAngleBAC = 3x + 9, mAngleABC = 8x + 11, and mAngleBCA = 5x - 8
I understand that I have to solve for X but how do I go about doing it?
b. Find the measures of Angle 1, Angle 2, and Angle 3.
Stacey Warren - Expert brainly.com
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Do those angles form a triangle? Do you know anything about the sum of the angles of a triangle?
I also forgot to add this. If you could all around explain it to me so I can understand it that would be great.
Yeah, those are the interior angles of a triangle. The interior angles of a triangle always add to 180 degrees, just like the interior angles of a rectangle always add to 360 degrees. Use that information to write an equation involving \(x\) and solve for \(x\). Then substitute the value you found for \(x\) into the formula for the size of each angle. If you find that \(x=10\), for example, angle BAC \(= 3x + 9\) would have value \(3*10+9 = 39\)