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Area and Perimeter: Triangle Video Lecture | Year 9 Mathematics (Cambridge)

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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.
37 videos|12 docs|18 tests
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