Measure it with a protractor.
If you are given a picture of a triangle and no information about it, then you could use a protractor.
using a protractor
A protractor measures the degree of angles and circles.
The answer will depend on what other information you have. If, for example, the angle is in a triangle, and you know the lengths of all three sides, you can use the cosine rule.
magic
Use a protractor.
With a protractor
There are three angles in a triangle but to measure them you would use a protractor.
Measure it with a protractor.
If you are given a picture of a triangle and no information about it, then you could use a protractor.
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.
A protractor is used to measure angles.
Using a protractor which should give a measure of a 90 degree angle and two acute angles that add up to 90 degrees.
Get a...PROTRACTOR!
a protractor is used to measure an angle