What is the next step in the construction of an angle bisector of angle abc?

The answer is option A.

Use a compass to draw a circle of any radius less than ,with vertex B as the center.

Step-by-step explanation:

Steps for drawing angle bisector of ∠ ABC.

Step 1. Draw any angle ABC

Step 2. Draw a circle using compass of any radius less than AB, with vertex B as the center. Then the arc will cut on AB an BC such that say point P on AB and point Q on BC.

Step 3. Now take measure more than AP or BQ

Step 4. Cut the arcs using compass on point P and point Q. You will get the intersection point.

Step 5. From that point say S draw a line to B. You will have SB, that is the angle bisector of angle ABC

answer: cos [   arcsin (3/5) - arccos (1/2) ] =

step-by-step explanation: × = 3/5 = 0.6--> x = 36.87 and x = 180 - 36.87 = 143.13 deg

cos y = 1/2 --> y = +- 60 deg a. cos (x - y) = cos (143.13 - 60) = cos 83,13  

=

0.12

b. cos (36.87 - 60) = cos (-23.23) = 0.92