Construct and angle and bisect it, that should do it.
To measure and construct angles
Use a protractor, carefully.
Construct an equilateral triangle which will have 3 equal interior angles of 60 degrees and 3 equal exterior angles of 120 degrees
how do you construct a triangle which has a perimeter of 120 and the base angles abc be 30 and 45 degrees
Construct and angle and bisect it, that should do it.
A protractor is normally used to construct angles.
To measure and construct angles
you might not be able to construct all the angles, but using a compass you can construct some angles by constructing angular bisectors. eg:construct angular bisector of straight line i.e; 180 degrees it gives 90 degrees
Use a protractor, carefully.
They used a protractor.
Construct an equilateral triangle which will have 3 equal interior angles of 60 degrees and 3 equal exterior angles of 120 degrees
If you mean angles of 150 degrees, 20 degrees and 20 degrees then it is impossible to construct such a triangle because the angles in any triangle add up to 180 degrees and the angles given add up to 190 degrees.
how do you construct a triangle which has a perimeter of 120 and the base angles abc be 30 and 45 degrees
false
Draw any square or rectangle, and you have it.
No because the 3 interior angles must add up to 180 degrees