2. Determine which of the following angle measures are correct. Select two that apply.
60°
2 answers:
Answer B) mJAB = 115° D) mCBA = 55° Explanation You know that C A J are points that are collinear, therefore, 180 - (11x - 6) = angle CAB Which is: 186 - 11x Use the fact that angles in a triangle add up to 180. 180 = 60 + 4x + 11 + 186 - 11x 180 = 257 - 7x 180 - 257 = - 7x -77 = -7x x = 11 Now you know that x = 11 and angle CAB is 186 - 11x simply substitute 186 - (11 x 11) = 65° So angle CAB is 65° (No option in your multiple choice answers fits this) Now try to find the value for angle CBA, substitute x = 11 into 4x + 11 4x11 + 11 = 55° (that’s option D where mCBA = 55° Now try to find the value of angle JAB, you know x = 11 and it’s value is 11x - 6 11 x 11 - 6 = 115° (this is option b)
Answer:
B,MJAB=115°
D,mCBA=55°
Step-by-step explanation:
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