Rectangle, Rhombus, and Square

Front

What is a rectangle?

Back

A rectangle is a quadrilateral with four right angles and opposite sides that are equal in length.

Tags

CCSS.5.G.B.4

Front

What is a rhombus?

Back

A rhombus is a quadrilateral with all four sides of equal length and opposite angles that are equal.

Tags

CCSS.3.G.A.1

Front

What is a square?

Back

A square is a special type of rectangle and rhombus that has all four sides equal and all four angles right angles.

Tags

CCSS.5.G.B.4

Front

Which quadrilateral does not have diagonals that are congruent?

Back

Parallelogram.

Front

What does it mean if diagonals are perpendicular (⊥)?

Back

Where they intersect is a 90˚ angle.

Front

The diagonals of a parallelogram always:

Back

bisect each other.

Front

If BA=5x+5 and AD=10x-20, find BD if BD = BA + AD.

Back

BD = 60.

Tags

CCSS.HSG.CO.C.10

Front

What is the formula for the area of a rectangle?

Back

Area = length × width.

Tags

CCSS.3.MD.C.7B

CCSS.4.MD.A.3

Front

What is the formula for the area of a rhombus?

Back

Area = (diagonal1 × diagonal2) / 2.

Tags

CCSS.6.G.A.1

Front

What is the formula for the area of a square?

Back

Area = side².

Tags

CCSS.3.MD.C.7B

CCSS.4.MD.A.3