Perimeter of Shapes

What is the perimeter (chu vi) of a shape?

• The area inside the shape.

• All of the sides added together

• 40cm

• The length of one side

Which one is NOT a unit to measure (đo lường) the perimeter of a shape?

• centimeter (cm)

• Kilograms (Kg)

• millimeter (mm)

• meter (m)

What is the area (diện tích) of a shape?

• All of the sides added together

• The space inside the shape

• The space outside the shape

Which is the width (chiều rộng) of this shape?

• x

• y

'x' shows us the ..................................... of the shape.

• width

• height

• length

• weight

What is the perimeter of the shape?

• 4cm

• 16cm

• 16mm

What is the perimeter of this shape?

• 14 feet

• 6 feet

• 20 feet

• 40 feet

What is the length of the missing sides (cạnh còn thiếu) (left and bottom)?

• 4cm+4cm

• 7m+2mm

• 7cm+4cm

• 10cm+3cm

What is the PERIMETER of this shape (Hãy nhớ tính các cạnh còn thiếu)?

• 26cm

• 20cm

• 52cm

• 54cm