Area of Rectangles
Find the area of a 5 cm by 8 cm rectangle.
40 cm²
Q: What’s the perimeter of a 6 cm by 4 cm rectangle?
(6 + 4) × 2 = 20 cm
Q: Find the area of a triangle with base 4 cm and height 3 cm.
6 cm²
Q: What’s the formula for the area of a parallelogram?
base × height
Q: A rectangle has a length of 9 meters and a width of 4 meters.
What is its area?
36m2
Q: What’s the area of a rectangle that’s 12 m long and 3 m wide?
36 m²
Q: A triangle has sides 5 m, 6 m, and 7 m. What is its perimeter?
18m
Q: What’s the formula for the area of a triangle?
base × height ÷ 2
Q: Find the area of a parallelogram with base 9 cm and height 5 cm.
45 cm²
Q: What is the perimeter of a trapezoid with sides 5 cm, 5 cm, 6 cm, and 4 cm?
20 cm
Q: A rectangle has an area of 48 m² and one side is 6 m. What’s the other side?
8 m
Q: A square has a perimeter of 36 cm. What is the length of one side?
9 cm
Q: A triangle has an area of 10 m² and a height of 5 m. What is the base?
4 m
Q: A parallelogram has an area of 60 m² and a base of 10 m. What is the height?
6m
q: A parallelogram has a base of 10 centimeters and a height of 6 centimeters.
What is its area?
60cm2
Q: If a rectangle’s width is doubled, how does its area change?
The area also doubles.
Q: What is the perimeter of a parallelogram with sides 7 m and 12 m?
38 m
What are the 3 steps to find the area of a trapezoid?
Step 2: divide by 2
Step 3: multiply by the height
Q: If the height stays the same but the base doubles, what happens to the area?
The area also doubles.
Q: What is the area of a triangle with base 6 m and height 2 m?
6 m²
Q: A garden is 4 m wide and 10 m long. If grass seed costs $3 per square meter, how much to cover the whole garden?
40 m² × $3 = $120
Q: Sara is fencing a trapezoid-shaped dog pen with sides 3 m, 4 m, 6 m, and 4 m. How much fencing does she need?
3 + 4 + 6 + 4 = 17 m
Q: A trapezoid has top base 5 m, bottom base 7 m, and height 2 m. What’s the area?
12 m²
Q: A billboard is shaped like a parallelogram with a base of 12 m and height 5 m. How much tarp is needed to fully cover it?
12 × 5 = 60 m²
A backyard patio is shaped like a rectangle and measures 12 meters long and 8 meters wide. In the center, there is a rectangular pool that is 6 meters long and 3 meters wide.The owner wants to tile the area around the pool, not under it.
How many square meters of tiles are needed to cover the area around the pool?
Solution:
Area of the patio: 12 × 8 = 96 m²
Area of the pool: 6 × 3 = 18 m²
Tiled area = 96 − 18 = 78 m²
Answer: ✅ 78 square meters