Q. 35.0( 3 Votes )

Draw an angle of 80° with the help of a protractor. Then construct angles of

(i) 40° (ii)160° and (iii) 120°.

Answer :

(i)

Step 1:


Draw AOB = 80° and with any radius and A as center draw an arc.



Step 2:


With X as center and radius more than half of XY draw an arc and with Y as center and equal radius draw an arc and let the arcs intersect at C.



Step 3:


Join OC.



COB is equal to 40°.


Step 4:


With Y as center and radius more than half of PY draw an arc and with P as center and equal radius draw an arc and let the arcs intersect at D.



Step 5:


Join OD.



DOB is 60°.


Step 6:


With O as center and OX as radius extend the Arc XY to Arc XY’.



Step 7:


With Q as center and XQ as radius, draw an arc which cuts the Arc XY’ at R.



Step 8:


Join RO.



ROB is 120°.

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