2016年9月29日 · Westcott Metric Protractor Transparent Ruler with sturdy quality and convenient design gives you the best using experience. This protractor ruler has 180 Degree protractor and 4 Inch scale. Clear ruler made of transparent plastic allows you to see through the page while working on a project.

Do you require a roof pitch or angle from a photograph or Google Street View? Exact Protractor is an On Screen Protractor that sees through to the picture behind like a normal protractor. You simply place the protractor over to object to be measured and then zoom in on the protractor to measure the angle.

3 1/2" 360 Degree Protractor Calibrated in degrees Laminated with solid center Transparent design allowing easy viewing to the page For use in home and office

2016年6月17日 · Westcott’s sturdy, high-quality Circular Compass Protractor for drawing and drafting is easy to use. This measuring tool is 3.5 inches and comes equipped with a 360–degree protractor for geometry. Made of transparent plastic, this drawing protractor / compass allows you to see through the page while working on a project.

Goniometer 12 inch, Transparent Orthopedic Angle Ruler Plastic Goniometer, 360 Degree Clear Protractor Physical Therapy for Body Measuring Tape Goniometer Protractor Ruler

2017年6月20日 · Great large and clear view protractor for kids school. Beats all those small ones in dollar store kits. Add-on Amazon price is superb.

Discover our Transparent Protractor, the perfect companion for accurate geometry lessons. Made from sturdy transparent plastic, with easy-to-read markings, ideal for students and professionals. Size: 12 cm.

Description 180° shatterproof protractor features a slotted separation Upper scale reads the left-opening angles Lower scale reads the right-opening angles With built-in metric ruler

Draw and measure precise angles with this Sparco Professional protractor. The transparent construction allows visibility of markings on paper for detailed technical drawings, while the open center enables consistent placements. Featuring a 6-inch base, this protractor delivers an added measuring option, and the plastic design supports easy ...

2015年2月15日 · These printable protractors are transparent images, which makes it easy to print on transparencies. This allows you to look through the protractor while you use it. Click the image to open the full-sized image (PNG). Alternatively, the PDF files provide protractors with clearer text and sharper lines.