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Triangle Area Practice
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Triangle Area Practice
📐 Part 1: Formula and Basic Calculations
1. What is the formula for finding the area of a triangle?
Area = base × height
Area = ½ × base × height
Area = 2 × base × height
Area = base + height
2. Calculate the area of a triangle with base = 8 cm and height = 6 cm. Show your working.
Answer: ________ cm²
3. A triangle has a base of 12 cm and height of 5 cm. What is its area?
17 cm²
30 cm²
60 cm²
120 cm²
4. Calculate the area of a triangle with base = 7.5 cm and height = 4.8 cm. Round your answer to the nearest whole number. Show your working.
Answer: ________ cm²
📏 Part 2: Measurement and Application
5. Why must the height of a triangle be perpendicular to the base when calculating area?
6. A triangle has a base of 9.2 cm and height of 6.7 cm. Calculate the area and round to the nearest whole number.
Answer: ________ cm²
7. If a triangle has an area of 24 cm² and a base of 8 cm, what is the height?
Height: ________ cm
8. True or False: If the base of a triangle doubles but the height stays the same, the area also doubles.
True
False
Explain your answer: _________________________________________________
🎯 Part 3: Problem Solving
9. A triangular garden bed has a base of 15.5 metres and a height of 8.3 metres. Calculate the area in square metres, rounded to the nearest whole number.
Answer: ________ m²
10. Challenge: A triangle has an area of 45 cm² and a height of 10 cm. If the base is increased by 3 cm, what will be the new area?
New area: ________ cm²
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