Grade 11 Area Formulas Worksheet
This worksheet covers various area formulas for common geometric shapes, including advanced applications and problem-solving.
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Grade 11 Area Formulas
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Read each question carefully and solve for the area using the appropriate formulas. Show all your work.
1. Calculate the area of a triangle with a base of 12 cm and a height of 8 cm.
2. A rectangle has a length of 15 meters and a width of 7 meters. Find its area.
3. What is the area of a circle with a radius of 6 inches? Use π ≈ 3.14.
4. Which formula is used to calculate the area of a trapezoid?
A = lw
A = ½bh
A = ½h(b₁ + b₂)
A = πr²
5. A parallelogram has a base of 10 cm and a height of 5 cm. Its area is:
25 cm²
50 cm²
100 cm²
150 cm²
6. The area of a rhombus can be calculated using the formula A = ½d₁d₂, where d₁ and d₂ are the lengths of the .
7. To find the area of a regular polygon, you need the length of its and its apothem.
8. Consider the trapezoid shown below. Calculate its area.
9. A circular garden has a diameter of 14 meters. What is the area of the garden? Use π ≈ 3.14.
10. The area of a square with side length 's' is s³.
True
False
11. Doubling the radius of a circle doubles its area.
True
False
12. A composite shape is made of a rectangle and a semicircle. The rectangle has dimensions 10 cm by 6 cm. The semicircle is attached to the 6 cm side. Find the total area of the composite shape. Use π ≈ 3.14.
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