Use a protractor.
A protractor is a shape: semi-circle or full circle, that has degrees marked around the edge. Place the marked centre of the protractor on (for example) the corner of two lines forming a right-angle. The bottom line will be zero, while the vertical line will cross the 90 degrees mark of the protractor, so proving that a right-angle is 90 degrees.
the obtuse angle is the largest angle in a triangle. It spreads from 91 to 179 on a protractor
If you absolutely needed to measure an angle to find out its degree measure, you would use a protractor.
In conjunction with a straight edge and a protractor
With a protractor
use your protractor
With a protractor.
it
It is easy to draw an equilateral triangle without a protractor. That gives a 60 degree angle. It is then simply a matter of bisecting the 60 degree angle, using an unmarked rule and compass, to get a 30 degree angle.
use the sun and silhoutte
Use a protractor.
You use a protractor
Yes by bisecting an angle of 140 degrees with a compass
With a protractor and a straight edge or bisect an angle of 75 degrees.
With a protractor and a straight edge.
i think you can use a ruler not sure