Area Formulas

Front

What is the formula for the area of a triangle?

Back

A = 1/2(bh)

Tags

CCSS.6.G.A.1

Front

What shape has the same area formula as a rectangle?

Back

Rhombus

Tags

CCSS.6.G.A.1

Front

What is the formula for the area of a rectangle?

Back

A = lw (length times width)

Tags

CCSS.3.MD.C.7B

CCSS.4.MD.A.3

Front

What is the formula to find the area of a trapezoid?

Back

A = 1/2h(b1 + b2) where h is the height and b1 and b2 are the lengths of the two bases.

Tags

CCSS.6.G.A.1

Front

What is the area of a square?

Back

A = s^2 (side length squared)

Tags

CCSS.3.MD.C.7B

CCSS.4.MD.A.3

Front

What is the formula for the area of a circle?

Back

A = πr^2 (pi times radius squared)

Tags

CCSS.7.G.B.4

Front

What is the area of a parallelogram?

Back

A = bh (base times height)

Tags

CCSS.6.G.A.1

Front

What is the difference between a rhombus and a rectangle in terms of area calculation?

Back

Both have the same area formula (A = bh), but a rhombus has all sides equal and opposite angles equal, while a rectangle has opposite sides equal and all angles are right angles.

Tags

CCSS.6.G.A.1

Front

What is the formula for the area of a sector of a circle?

Back

A = (θ/360) * πr^2 where θ is the angle in degrees.

Tags

CCSS.HSG.C.B.5

Front

How do you calculate the area of a composite shape?

Back

Divide the shape into known shapes, calculate the area of each, and then sum them up.

Tags

CCSS.3.MD.C.7D