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Keep your students engaged with hundreds of interactive skills on Oryx Learning. This online protractor tool is built to practice measuring and estimating angles. Learn how to draw and measure angles with the help of this free interactive tool.
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Example 1: Measuring an Angle Suppose you have an angle with one line at the 0° mark and the other line at the 60° mark on the protractor's scale. The angle measurement is 60°. Example 2: Drawing an Angle Suppose you want to draw a 30° angle. Place the protractor's center point at the end of the line, and the 0° line on the baseline.
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A protractor is a measuring tool often made of translucent plastic or glass used to read, measure, and construct angles. The most common protractor is a semicircle -shaped scale ranging from 0° to 180°. Protractors can have diameters ranging from two inches to more than twelve inches. They are typically made of brass, steel, wood, ivory, or.
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Goniometer made by Develey le Jeune in Lausanne, late 18th-early 19th century. A goniometer is an instrument that either measures an angle or allows an object to be rotated to a precise angular position. The term goniometry derives from two Greek words, γωνία 'angle' and μέτρον 'measure'. The protractor is a commonly used type in the fields of mechanics, engineering, and geometry.
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Practice Measuring Angles with an Interactive Protractor! Use this interactive protractor app to practice measuring angles on the screen, or download the questions as a pdf worksheet. Rotate the protractor by holding down the shift-key + left-mouse button, or use two fingers on your touch device. More instructions below.
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Move up your protractor's scale from 0° and find the measurement you want for your angle. If you're drawing an acute angle, make sure you're looking at the scale numbers that are less than 90°. If you're drawing an obtuse angle, use the scale numbers that are greater than 90°. Then, simply draw a dot at the measurement.
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Learn how to use a protractor, a tool that helps you measure angles in degrees, with this web page. See an animation, a quiz and a worksheet to practice your skills.
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Online Protractor. This is a transparent online protractor, you can easily measure the angle of any object around you, and it helps you measure angles in a picture, taking a picture and uploading it, then dragging the midpoint of the protractor to the vertex of the angle, our virtual protractor is very accurate, it can zoom in, zoom out, rotate.
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Protractor, in math, is considered to be an important measuring instrument that is in the shape of a semi-circle.The common protractor is a translucent tool that helps us measure angles in degrees. A radian scale protractor measures an angle in radians. If we observe the figure given below, we can see that a common protractor has degrees marked clockwise from 0° to 180° in the outer scale.
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Protractor for measuring Angles. • Camera view with Pause button. • Measure angle between two markers. • Horizontal and vertical plumb lines (Tap to snap nearest marker to line, double tap to track, tap again to release).
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The PRO 360 Digital Protractor from SmartTool Technologies is a revolutionary measuring tool that provides an immediate, digital reading of all angles in a 3.
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protractor, any of a group of instruments used to construct and measure plane angles. The simplest protractor comprises a semicircular disk graduated in degrees—from 0° to 180°. It is an ancient device that was already in use during the 13th century. At that time, European instrument makers constructed an astronomical observing device.
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2. Place your protractor on the straight line to measure the acute angle. Line up the horizontal line on the baseline of your protractor, placing the center of your protractor over the vertex. Look where the diagonal line crosses the protractor to determine the number of degrees in the acute angle.
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How to use a protractor to measure and draw angles.