CCSS 4.G.1 Worksheets
CCSS 4.G.1 (Common Core, 4th Grade): "Draw points, lines, line segments, rays, angles (right, acute, obtuse], and perpendicular and parallel lines. Identify these in two-dimensional figures." The worksheets below practice this standard. Each one is a free printable PDF with an answer key, comes in multiple versions, and can also be assigned digitally - no login or account needed.
Geometry
1 Draw points, lines, line segments, rays, angles (right, acute, obtuse], and perpendicular and parallel lines. Identify these in two-dimensional figures.
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Decide whether an angle shown is a right angle (90°). Tell the difference between right angles and angles that are smaller (acute) or larger (obtuse). Recognize that perpendicular lines meet to make a 90° angle.
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Identify whether an angle is acute, right, obtuse, or straight by looking at it. Compare an angle to a right angle as a quick visual benchmark. Notice when an angle is smaller than 90°, exactly 90°, between 90° and 180°, or exactly 180°. Use the shape and direction of the rays to classify angles even when they are rotated.
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Spot and name acute, right, and obtuse angles in different shapes. Count how many of each type of angle a shape has. Use the corners (vertices) of a polygon to decide where the angles are.
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Identify acute, right, obtuse, and reflex angles in a drawing. Count how many of each type of angle a shape has. Use angle size clues (smaller than 90°, exactly 90°, between 90° and 180°, greater than 180°) to sort angles correctly. Pay attention to where the angle is formed at a vertex so you don’t count the wrong corner.
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Identify whether a drawing shows a line, ray, or line segment. Use points and arrowheads to tell where a line or ray starts and which direction it goes. Name and classify angles as acute, right, obtuse, or straight. Compare angles to decide which one is larger or smaller based on how wide they open. Describe where lines, rays, segments, and angles are located in a diagram using points and intersections.
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Tell whether two lines are parallel, perpendicular, or intersecting by looking at a picture or graph. Spot right angles to recognize when lines are perpendicular. Notice when lines never meet to identify parallel lines. Describe where two lines cross and name that point as an intersection.
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Identify whether two lines are parallel, perpendicular, or intersecting. Match a written description of line relationships to the correct picture.
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Compare angles by how far they are opened Understand that ray length does not change an angles measure Recognize a right angle from its square marker Order angles from least to greatest by sight
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Classify the angles inside a polygon as acute, right or obtuse Judge a whole shape by the mix of angles it contains Recognize that a shape can hold all three kinds of angle at once Rule out a shape by finding the kind of angle it is missing
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Tell a point, line segment, ray, line and angle apart. Use the ends of a figure to decide what it is. Recognize that a ray has one endpoint and a line has none.
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Write a line segment, ray or line using the correct symbol. Know that the order of the letters matters for a ray but not for a segment or line. Match the letters in a name to the labeled points on the figure.
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