A protractor is used to draw and measure angles. An angle is the amount of turn between two lines. Angles are measured in degrees with the symbol °. Angles can be labelled with 3 letters (eg DEF) to ...
An angle is the space between two lines that start at the same point. This point is called the vertex. Angles measure the size of a turn in degrees. You can show degrees using the symbol ° after the ...
Angle of Spatula(θ Sp): Immerse a plane in the powder pile, pull up the plane vertically. The angle of spatula is the average between the angles formed of powder pile on the plane before and after ...