Perimeter of Polygons and Circles

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

• Perimeter = side length * side length

• Perimeter = 4 * side length

• Perimeter = 2 * side length

• Perimeter = side length + side length

If the side length of a square is 5 cm, what is its perimeter?

• 25 cm

• 10 cm

• 15 cm

• 20 cm

How do you find the perimeter of a rectangle?

• Perimeter = length + width

• Perimeter = 2 * (length + width)

• Perimeter = 2 * length

• Perimeter = 2 * width

If the length of a rectangle is 8 cm and the width is 4 cm, what is its perimeter?

• 12 cm

• 16 cm

• 32 cm

• 24 cm

What is the formula for finding the perimeter of a triangle?

• Perimeter = side1 length / side2 length / side3 length

• Perimeter = side1 length - side2 length - side3 length

• Perimeter = side1 length + side2 length + side3 length

• Perimeter = side1 length * side2 length * side3 length

If the sides of a triangle measure 3 cm, 4 cm, and 5 cm, what is its perimeter?

• 10 cm

• 12 cm

• 6 cm

• 15 cm

How is the perimeter of a circle calculated?

• Perimeter = π * radius

• Perimeter = π * diameter

• Perimeter = 2 * π * radius

• Perimeter = 2 * diameter

If the radius of a circle is 6 cm, what is its perimeter (approx.)?

• 42.75 cm

• 30.12 cm

• 37.68 cm

• 24.56 cm

How do you find the perimeter of a composite shape?

• Multiply the length and width of the shape to get the perimeter.

• Subtract the area of the shape from its total perimeter.

• Find the individual perimeters of each simple shape within the composite shape, then add them together.

• Divide the shape into equal parts and find the perimeter of each part separately.

If a composite shape consists of a square with side length 4 cm and a rectangle with length 6 cm and width 3 cm, what is the total perimeter?

• 32 cm

• 30 cm

• 24 cm

• 28 cm