Finding Missing Side Lengths with Given Perimeters

What is perimeter?

• The length of one side of a shape

• The distance around a shape

• The area inside a shape

• The number of sides a shape has

If a rectangle has a perimeter of 24 cm and one side is 6 cm, what could be the length of the opposite side?

• 24 cm

• 18 cm

• 12 cm

• 6 cm

What does it mean if a shape has a 'missing side'?

• The shape is incomplete

• One side's length is not known

• The shape has no sides

• The shape is invisible

If the perimeter of a square is 20 cm, what is the length of one side?

• 15 cm

• 5 cm

• 20 cm

• 10 cm

How do you find the missing side length when you know the perimeter?

• Divide the perimeter by the number of sides

• Subtract the known side lengths from the perimeter

• Multiply all the known side lengths

• Add all the known side lengths

If a shape's perimeter is 32 meters and two sides are 11 meters each, what is the total length of the remaining two sides?

• 32 meters

• 22 meters

• 10 meters

• 44 meters

What is a regular pentagon?

• A shape with five unequal sides

• A shape with five sides of equal length

• A shape with five corners

• A shape that changes size

If three sides of a rectangle are known (5 cm, 3 cm, and 5 cm), and the perimeter is 20 cm, what is the length of the missing side?

• 5 cm

• 9 cm

• 3 cm

• 7 cm

What is the first step in finding a missing side length when given the perimeter?

• Subtracting the known lengths from the perimeter

• Guessing the missing length

• Drawing the shape

• Adding the known side lengths

If a rectangle's perimeter is 32 meters and one side is 11 meters, what are the lengths of the other three sides?

• 10 meters, 10 meters, 2 meters

• 5 meters, 5 meters, 5 meters

• 11 meters, 10 meters, 10 meters

• 11 meters, 5 meters, 5 meters