2-D Shapes

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What is a 2-D shape?

Back

A 2-D shape is a flat figure that has two dimensions: length and width. Examples include circles, squares, and triangles.

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CCSS.1.G.A.1

CCSS.2.G.A.1

Front

What is a square?

Back

A square is a 2-D shape with four equal sides and four right angles.

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CCSS.5.G.B.4

Front

What is a triangle?

Back

A triangle is a 2-D shape with three sides and three angles.

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CCSS.2.G.A.1

Front

What is a circle?

Back

A circle is a 2-D shape that is round and has no corners. All points on the circle are the same distance from the center.

Front

What is a rectangle?

Back

A rectangle is a 2-D shape with four sides, where opposite sides are equal in length and all angles are right angles.

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CCSS.1.G.A.1

CCSS.2.G.A.1

Front

What is a polygon?

Back

A polygon is a 2-D shape that has three or more straight sides. Examples include triangles, quadrilaterals, and pentagons.

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CCSS.2.G.A.1

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What is a pentagon?

Back

A pentagon is a 2-D shape with five sides and five angles.

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CCSS.2.G.A.1

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What is a hexagon?

Back

A hexagon is a 2-D shape with six sides and six angles.

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CCSS.1.G.A.1

CCSS.2.G.A.1

Front

What is symmetry in shapes?

Back

Symmetry in shapes means that one half of the shape is a mirror image of the other half.

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CCSS.4.G.A.3

Front

What is an angle?

Back

An angle is formed when two lines meet at a point. It is measured in degrees.