Perimeter of Composite Shapes Missing Sides

What is the perimeter of a 7 x 3 rectangle?

• 10m²

• 10m

• 21m²

• 20m

What is the perimeter of a square of side 3cm.

• 12cm

• 6cm

• 15cm

• 9cm

What is the perimeter of this shape?

Each grid square is 1cm in length.

• 13cm

• 15cm

• 16cm

• 18cm

What is the perimeter of this shape?

• 45mm

• 58mm

• 50mm

One side of this shape is marked with a question mark. How long is this side?

• 1 cm

• 2 cm

• 3 cm

• 4 cm

What is the perimeter of this shape?

• 33 cm

• 23 cm

• 36 cm

• 40 cm

The length of two sides in this figure have not been shown. How long are they?

• 8cm and 3cm

• 4cm and 2cm

• 2cm and 3cm

• 8cm an 4cm

What is the perimeter of this shape?

• 38 cm

• 41 cm

• 42 cm

• 39 cm