Combining the functions of the T square, triangle, protractor, and scale, it greatly increases the efficiency of producing a drawing. |
The protractor has a blade that can be set at any angle relative to the axis of the ruler. |
In a full analysis, Christina uses a ruler and protractor to measure the letters and angles. |
Called a three arm protractor or station pointer, it was invented in 1801 by Joseph Huddart, a U.S. naval captain. |
It is tempting to hypothesize that because the limb girdles display positive allometry, the protractor and retractor muscles attached to them did as well. |
Her fingers unzipped the zipper and took out her binder for math along with her calculator, pencil, and protractor. |