Area
A classroom rug is a rectangle that is 3 feet long and 2 feet wide.
What is the area of the rug?
3 ft × 2 ft = 6 ft²
A rectangle has a length of 5 ft and a width of 3 ft.
What is the perimeter of the rectangle?
Perimeter = 2(length + width)
2(5 + 3) = 2 × 8 = 16 ft
Answer: 16 feet
A box has a length of 2 ft, a width of 3 ft, and a height of 1 ft.
What is the volume of the box?
2 × 3 × 1 = 6 ft³
Answer: 6 cubic feet
A rectangular playground is 9 meters long and 7 meters wide.
What is the area of the playground?
Area = length × width
9 m × 7 m = 63 m²
Answer: 63 square meters
A garden is a rectangle that is 8 m long and 4 m wide.
What is the perimeter of the garden?
2(8 + 4) = 2 × 12 = 24 m
Answer: 24 meters
A storage container is 4 m long, 2 m wide, and 3 m high.
What is the volume of the container?
4 × 2 × 3 = 24 m³
Answer: 24 cubic meters
A poster board is 12 inches long and 8 inches wide.
What is the area of the poster board?
Area = length × width
12 in × 8 in = 96 in²
Answer: 96 square inches
A playground is 10 m long and 6 m wide.
A fence is built around it.
How much fencing is needed?
2(10 + 6) = 2 × 16 = 32 m
Answer: 32 meters of fencing
A fish tank is 5 ft long, 3 ft wide, and 2 ft high. What is the volume of the fish tank?
5 × 3 × 2 = 30 ft³
Answer: 30 cubic feet
A garden is 8 m long and 6 m wide.
The gardener plants flowers in half of the garden.
What is the total area planted with flowers?
8 m × 6 m = 48 m²
Now find half of the garden:
48 ÷ 2 = 24 m²
Answer: 24 square meters
A rectangular rug is 12 ft by 9 ft.
A ribbon is placed around the entire edge.
What is the total length of ribbon needed?
2(12 + 9) = 2 × 21 = 42 ft
Answer: 42 feet of ribbon
A sandbox is 6 m long, 4 m wide, and 3 m deep.
What is the volume of sand it can hold?
6 × 4 × 3 = 72 m³
Answer: 72 cubic meters
A farmer has a rectangular field that is 15 meters long and 9 meters wide.
He wants to plant corn in the entire field.
What is the area of the field the farmer will plant?
Area = length × width
15 m × 9 m = 135 m²
Answer: 135 square meters
A farmer has a rectangular field that is 18 m long and 11 m wide.
He wants to put a fence around it, but leaves a 3 m opening for a gate.
How much fencing does he need?
Perimeter = 2(length + width)
2(18 + 11) = 2 × 29 = 58 m
Now subtract the gate opening:
58 − 3 = 55 m
Answer: 55 meters of fencing
A moving truck bed is 10 ft long, 6 ft wide, and 4 ft high. Boxes take up 120 cubic feet of space inside. How much empty space is left in the truck?
10 × 6 × 4 = 240 ft³
Now subtract the space used by the boxes:
240 − 120 = 120 ft³
Answer: 120 cubic feet of empty space