Area of Circles, Sectors and Triangles
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What is the formula of the arc length of a sector in radians?
Arc length of a sector, s = rθ
What is the formula of the area of a sector in radians?
Area of a sector, A = 1/2r2θ
The following diagrams give the formulas for the arc length and area of a sector. Scroll down the page for more examples and solutions.
Radians : C2 Edexcel January 2013 Q7(a)(b)
Area of Sector : C2 Edexcel January 2013 Q7(c)
Arc length : C2 Edexcel January 2013 Q7(d)
More Lessons for A Level Maths
Math Worksheets
Examples, solutions, videos, activities and worksheets that are suitable for A Level Maths.
What is the formula of the arc length of a sector in radians?
Arc length of a sector, s = rθ
What is the formula of the area of a sector in radians?
Area of a sector, A = 1/2r2θ
The following diagrams give the formulas for the arc length and area of a sector. Scroll down the page for more examples and solutions.
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