Question

make an angle of 80°.Make a copy of it using rular and compass also draw?​

Answer 1

(i) Construct an angle ABC=80  

(ii) Take a line | and mark a point D on it.

(iii) Fix the compass pointer on B and draw an arc which cuts the sides of ∠ABC at D and E.

(iv) Without changing the compass setting, place the pointer on P and draw an arc which cuts | at Q.                                                                           (v) Open the compass equal to length DE.

(vi) Without disturbing the radius on the compass,

place its pointer at Q and draw an arc which cuts the previous arc at R.

(vii) Join PR and draw ray PR.

Its gives ∠RPQ which is the required angle

whose measure is equal to the measure of ∠ABC