Area and Perimeter

Front

What is the definition of perimeter?

Back

Perimeter is the total distance around the outside of a shape.

Front

How do you calculate the perimeter of a rectangle?

Back

Add the lengths of all four sides or use the formula: P = 2(length + width).

Tags

CCSS.4.MD.A.3

Front

What is the definition of area?

Back

Area is the amount of space inside a shape.

Front

How do you calculate the area of a rectangle?

Back

Multiply the length by the width: A = length × width.

Tags

CCSS.3.MD.C.7B

CCSS.4.MD.A.3

Front

If a rectangle has a length of 10 m and a width of 5 m, what is its perimeter?

Back

P = 2(10 m + 5 m) = 30 m.

Tags

CCSS.4.MD.A.3

Front

If a rectangle has a length of 8 cm and a width of 4 cm, what is its area?

Back

A = 8 cm × 4 cm = 32 cm².

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 m?

Back

P = 4 × 6 m = 24 m.

Tags

CCSS.4.MD.A.3

Front

What is the area of a square with a side length of 3 cm?

Back

A = 3 cm × 3 cm = 9 cm².

Tags

CCSS.3.MD.C.7B

CCSS.4.MD.A.3

Front

If a shape has a perimeter of 40 in, what could be the dimensions of a rectangle?

Back

Possible dimensions could be 10 in by 10 in, or 12 in by 8 in.

Tags

CCSS.3.MD.D.8

Front

What is the formula for the perimeter of a triangle?

Back

P = side1 + side2 + side3.

Tags

CCSS.3.MD.D.8