Year 9 Exam > Year 9 Videos > Year 9 Mathematics (Cambridge) > Area and Perimeter: Triangle
Area and Perimeter: Triangle Video Lecture | Year 9 Mathematics (Cambridge)
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37 videos|12 docs|18 tests
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FAQs on Area and Perimeter: Triangle Video Lecture - Year 9 Mathematics (Cambridge)
| 1. What is the formula to calculate the area of a triangle? |  |
Ans. The formula to calculate the area of a triangle is (base x height) / 2.
| 2. How do you find the perimeter of a triangle? | |
Ans. To find the perimeter of a triangle, you simply add up the lengths of all three sides.
| 3. Can you calculate the area of a triangle if you only know the lengths of the sides? | |
Ans. No, you need to know at least the base and height, or two sides and the included angle, to calculate the area of a triangle.
| 4. How can you find the height of a triangle if it is not given? | |
Ans. You can use trigonometry to find the height of a triangle by using one of the angles and the length of one side.
| 5. Is the perimeter of a triangle equivalent to the sum of the lengths of its sides? | |
Ans. Yes, the perimeter of a triangle is indeed the sum of the lengths of its three sides.
About this Video
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Oct 30, 2024 Last updated |
Video Description: Area and Perimeter: Triangle for Year 9 2024 is part of Year 9 Mathematics (Cambridge) preparation.
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