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WALT find the perimeter and area of 2D straight-sided shapes

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To find the perimeter of any straight sided shape just add up the lengths of all the sides

The perimeter is the distance all the way around the outside of a shape.

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Find the perimeter of these shapes.

The perimeter is the distance all the way around the outside of a shape.

Answer:

15

3+3+3+3+3=15

Answer:

Answer:

1cm

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Find the perimeter of these shapes.

The perimeter is the distance all the way around the outside of a shape.

*Hint: each square length is equal to 1cm.

1.

2.

3

4.

5.

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Which of these shapes has a perimeter of: (show equation to show why)

  1. 24cm
  2. 26cm
  3. 18cm

The perimeter is the distance all the way around the outside of a shape.

a

b

c

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The area is the number of square units inside a shape

To find the area of a rectangle, multiply its length (longer side) by its width (the shorter side)

length x width = area

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The area is the number of square units inside a shape

To find the area of a rectangle, multiply its length (longer side) by its width (the shorter side)

length x width = area

Find the area of these shapes (Write your answer in cm²).

Answer:

__cm²

Answer:

Answer:

Answer:

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The area is the number of square units inside a shape

To find the area of a rectangle, multiply its length (longer side) by its width (the shorter side)

length x width = area

Answer:

Answer:

Answer:

Answer:

Find the area of these shapes. (Write your answer in cm²)

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The area is the number of square units inside a shape

To find the area of a rectangle, multiply its length (longer side) by its width (the shorter side)

length x width = area

Which of these shapes has an area of: (tell me why)

  • 114cm²
  • 48cm²
  • 54cm²

a

b

c