Question

How to construct an angle of 30 degrees
write steps

25 points

Answer 1

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Constructing a 30º Angle

We know that:

So, to construct an angle of 30º, first construct a 60º angle and then bisect it. Often, we apply the following steps.

Step 1:  Draw the arm PQ.
Step 2:  Place the point of the compass at P and draw an arc that passes through Q.
Step 3:  Place the point of the compass at Q and draw an arc that cuts the arc drawn in Step 2 at R.
Step 4:  With the point of the compass still at Q, draw an arc near T as shown.
Step 5:  With the point of the compass at R, draw an arc to cut the arc drawn in Step 4 at T.
Step 6:  Join T to P.  The angle QPT is 30º.

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Answer 2

draw a line segment.
mark the end points as A and B
from A or B ,draw an arc ,.
With the same radius,cut the arc into two such that each arc would measure 60°,
draw a dotted line from the point through first arc.
taking the radius more than half of the arc ,cut the. arc.we get 30°, now draw a line from A or B thrpught the arc...
mark the angle as 30°