Angles help?
A)12
B)14
C)41
D)82
2.Ray SU bisects angle RST. The measure of angle RSU=3x-1, the measure of angle UST=2x+13 and the measure of angle RST=6x-2. find the measure of angle RSU.
A)12
B)14
C)41
D)82
3.Find the measure of angle BAC if the measure of angle CAD=42 and the measure of angle DAB=86.
A)44
B)64
C)128
D)Not enough information
4.Find the measure of angle BAC if the measure of angle BAD=75, the measure of angle BAC=3x and the measure of angle CAD=2x.
A)15
B)30
C)45
D)60
Favorite Answer
1. B (you set it up as an equal algebra problem: 3x -1 = 2x + 13, and then solve because the definition of ‘bisects’ means split an angle equally)
2. i don’t know, sorry! 🙁
3. 128 (draw it on a peice of paper – B is a ray, D is a ray, A is the vertex and C is another ray)
4. Set it up as equal parts (75 degrees and 2x are what make your angle as a whole) that make a whole (3x for all the angles together), so the problem should look like this: 3x = 75 + 2x, and solve.
Well, hope you can at least get something out of this…:)
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