**Common Core State Education Standards**. There are 3 sets of lines and 4 sets of angles. Read More...

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Worksheet/Answer keyLines and Angles

Worksheet/Answer keyLines and Angles

Worksheet/Answer keyAngles

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Vocabulary/Answer keyLines and Angles

Vocabulary/Answer keyLines and Angles

CCSS.Math.Content.4.MD Measurement and Data

CCSS.Math.Content.4.MD.C Geometric measurement: understand concepts of angle and measure angles.

CCSS.Math.Content.4.MD.C.5 Recognize angles as geometric shapes that are formed wherever two rays share a common endpoint, and understand concepts of angle measurement:

CCSS.Math.Content.4.MD.C.5a An angle is measured with reference to a circle with its center at the common endpoint of the rays, by considering the fraction of the circular arc between the points where the two rays intersect the circle. An angle that turns through 1/360 of a circle is called a ''one-degree angle,'' and can be used to measure angles.

CCSS.Math.Content.4.MD.C.5b An angle that turns through n one-degree angles is said to have an angle measure of n degrees.

CCSS.Math.Content.4.MD.C.6 Measure angles in whole-number degrees using a protractor. Sketch angles of specified measure.

CCSS.Math.Content.4.G Geometry

CCSS.Math.Content.4.G.A Draw and identify lines and angles, and classify shapes by properties of their lines and angles.

CCSS.Math.Content.4.G.A.1 Draw points, lines, line segments, rays, angles (right, acute, obtuse), and perpendicular and parallel lines. Identify these in two-dimensional figures.