You should use a special device for measuring angles - a protractor. With a ruler, it is much more complicated, but still possible: you can mark two points on the angle, one on each side; measure the distance from the vertext of the angle to those points; measure the distance between the points; then use the Law of Cosines to calculate the angle.
1. Ruler (length, height, width) 2. Meter Stick (length, height, width) 3. Protractor (angle)
by using a ruler and a compass
A = 60 B = 20 C = 140 This can have a large number of answers.
measure
55°
You cannot measure an angle using a ruler.
A ruler
well an angle ruler is used to measure the interior angles of a shape or an agle period
by using a ruler
No, a ruler is used only to measure length, width or height. You must use a protractor in order to measure the degrees in an angle.
To find the degree of angle of a side of a triangle, a protractor is needed to measure the angle. Place the '0' on the protractor on the point of the angle and look at the top part to determine degree of angle. To measure the length of a triangle side, a simple ruler can be used to measure the length.
A ruler. Add a line to make the angle into a triangle, measure the sides and use trigonometry.
An angle ruler is a tool used to measuring angles like a protractor. An angle ruler is more accurate than a protractor.
use a ruler to measure the length. use a protractor to measure the angle of incidence. i dont think there is any other way to measure a ray. unless you are talking about the angle which you most likely arent since the question clearly states 'ray'.
the measure of an angle is the degrees of an angle.
1. Ruler (length, height, width) 2. Meter Stick (length, height, width) 3. Protractor (angle)
you can measure a angle with a protracte.