What is the formula for the area and perimeter of a square?
A = l x w
P = l + l + w + w
A rectangle is 5 metres long and 3 metres wide.
What is its area and perimeter?
✅ Area = 15 m²
✅ Perimeter = 16 m
Write the formulas for finding the area and perimeter of a rectangle.
A = l x w
P = l + l + w + w
The radius of a circular pond is 3.5 metres.
What is the formula you'd use to find its area? What's the area?
A = π × 3.5²
A ≈ 38.465 m²
A circular pond has a radius of 7 metres.
What is the area of the pond? (Use π ≈ 3.14)
✅ Area = π × r²
✅ Area = 3.14 × 7² = 3.14 × 49 = 153.86 m²
How do you find the perimeter and area of a triangle?
P = add all sides together
A = ½ × base × height
Find the perimeter of a right triangle with one side length 6m, one side length 4m, and one side length 9m.
P = 19m
A square garden has an area of 49 m².
What is the length of one side, and what is the perimeter?
✅ Side = 7 m (since √49 = 7)
✅ Perimeter = 28 m
What is the formula for the area of a parallelogram?
P= 2 × (base + side length)
A = b × h
A rectangle has a perimeter of 24 cm.
Its length is 7 cm.
What is its width, and what is the area?
✅ Perimeter = 2 × (7 + width)
✅ 24 = 2 × (7 + w) → 12 = 7 + w → w = 5
✅ Area = 7 × 5 = 35 cm²
Write the formulas for the area and circumference of a circle.
A = πr²
C = 2πr
Find the perimeter of a pentagon with side lengths that equal 8cm.
P= 40cm
A circle has a diameter of 10 cm.
Write the expression to find the area, using the correct formula.
✅ Radius = 5 cm
✅ A = π × 5²
A rectangle has a length of 10 cm and a perimeter of 30 cm.
What is the width, and what is the area?
✅ Perimeter = 2 × (length + width)
→ 30 = 2 × (10 + w)
→ 15 = 10 + w
→ Width = 5 cm
✅ Area = 10 × 5 = 50 cm²