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Area Formulas and Applications
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Area Formulas and Applications
📐 Part 1: Area Formula Recognition
1. Which formula is used to find the area of a rectangle?
Area = base × height
Area = length × width
Area = (base × height) ÷ 2
2. What is the correct formula for the area of a triangle?
Area = length × width
Area = (base × height) ÷ 2
Area = base × height
3. A parallelogram has a base of 8 cm and height of 5 cm. What is its area?
13 cm²
20 cm²
40 cm²
4. Which measurements do you need to find the area of a triangle?
Base
Height
Width
All three sides
🔢 Part 2: Calculate the Areas
5. Rectangle: length = 12 metres, width = 7 metres
Area = _______ × _______ = _______ m²
6. Triangle: base = 10 cm, height = 6 cm
Area = (_______ × _______) ÷ 2 = _______ cm²
7. Parallelogram: base = 15 metres, height = 4 metres
Area = _______ × _______ = _______ m²
🏠 Part 3: Real-World Problems
8. Sarah wants to paint a rectangular wall that is 4 metres long and 3 metres high. What area does she need to paint?
9. A triangular garden bed has a base of 8 metres and a height of 5 metres. How much area is available for planting?
10. Explain in your own words: Why do we divide by 2 when finding the area of a triangle?
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