PLEASE HELP!!!
2 answers:
Answer:
D
Step-by-step explanation:
To answer this question, we have to define to bisect an angle:
To bisect an angle is to divide it into two equal parts, we can call those as congruent parts because these have the same area.
So it is crucial: we need to keep it proportionally divided when we start to construct an angle bisector.
Examining the alternatives, there is only one correct:
--
D. So now let's place the compass needle on the vertex of the angle, and draw an arc across both legs of the angle. True
The reason to proceed this way as our first step is the proportional division made by the inner line that bisects the angle. Thus in the first step, we pave the way to trace another arc in the middle of the inside area. Done with the same width and compass needle on the marks. Finally, the line to vertex crossing the mark.
(Check the 3rd picture to Final Construction)
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9514 1404 393
Answer:
30°, 150°
Step-by-step explanation:
You know the answer to this because you have memorized the short table of trig function values.
sin(θ) = 1/2 for θ = 30° and θ = 150°
