Area and perimeter of polygons

Front

What is the definition of perimeter?

Back

The perimeter is the distance around a shape.

Front

What is the formula to calculate the perimeter of a rectangle?

Back

Perimeter = 2 × (length + width)

Tags

CCSS.3.MD.D.8

Front

What is the definition of area?

Back

The area is the amount of space inside a shape.

Front

What is the formula to calculate 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 to calculate the area of a triangle?

Back

Area = 1/2 × base × height

Tags

CCSS.6.G.A.1

Front

If a rectangle has a length of 5 units and a width of 3 units, what is its perimeter?

Back

Perimeter = 2 × (5 + 3) = 16 units

Tags

CCSS.4.MD.A.3

Front

If a rectangle has a length of 10 units and a width of 4 units, what is its area?

Back

Area = 10 × 4 = 40 square units

Tags

CCSS.3.MD.C.7B

CCSS.4.MD.A.3

Front

What is the perimeter of a square with a side length of 6 units?

Back

Perimeter = 4 × 6 = 24 units

Tags

CCSS.4.MD.A.3

Front

If the perimeter of a shape is 30 cm and the width is 10 cm, what is the length?

Back

Length = (30 - 2 × 10) / 2 = 5 cm

Tags

CCSS.3.MD.D.8

Front

What is the area of a triangle with a base of 8 units and a height of 5 units?

Back

Area = 1/2 × 8 × 5 = 20 square units

Tags

CCSS.6.G.A.1