Then
Draw an
angle of 8o with
pretractor using
ruler construct
angles of. 40 160 120
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Answer:
hope it will be helpful to you
Step-by-step explanation:
First, draw an angle of 80° say ∠QOA = 180° with the help of protractor. Now, use the the following steps to construct angles of
1.Taking O as centre and any radius draw an arc which intersect OA at E and OO at F.
2.Taking E and F as centres and radius more than 1/2 EF draw arcs which intersect each other at P.
3.Join OP Thus, ∠POA = 40° [∴ 40° = 1/2 x 80°]
4.Now, taking F as centre and radius equal to EF draw an arc which intersect previous arc obtained in step ii at S.
5.Join OS. Thus, ∠SOA = 160° [∴ 160° = 2 x 80°]
6.Taking S and F as centre and radius more than 1/2 SF draw arcs which intersect each other at R.
7.Join OR. Thus, ∠ROA = ∠ROQ = 40° + 80°= 120°.
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