2D Shapes

Front

What is a 2D shape?

Back

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

Tags

CCSS.1.G.A.1

CCSS.2.G.A.1

Front

What is a square?

Back

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

Tags

CCSS.5.G.B.4

Front

What is a rectangle?

Back

A rectangle is a 2D shape with opposite sides that are equal and four right angles.

Tags

CCSS.1.G.A.1

CCSS.2.G.A.1

Front

What is a trapezoid?

Back

A trapezoid is a 2D shape that has at least one pair of parallel sides.

Front

What is a rhombus?

Back

A rhombus is a 2D shape with four equal sides but does not necessarily have right angles.

Tags

CCSS.3.G.A.1

Front

What is an angle?

Back

An angle is formed by two rays that meet at a point called the vertex. It is measured in degrees.

Front

What is a right angle?

Back

A right angle is an angle that measures exactly 90 degrees.

Tags

CCSS.4.G.A.1

Front

What is an acute angle?

Back

An acute angle is an angle that measures less than 90 degrees.

Tags

CCSS.4.G.A.1

Front

What is an obtuse angle?

Back

An obtuse angle is an angle that measures more than 90 degrees but less than 180 degrees.

Tags

CCSS.4.G.A.1

Front

What does congruent mean in geometry?

Back

Congruent means that two shapes are the same size and shape.

Tags

CCSS.8.G.A.2