1. Determine how numerous triangles deserve to fit into a circle. Divide 360dg by the variety of triangles. Main point the quotient through the area that the circle.

You are watching: Which explanation justifies how the area of a sector of a circle is derived?

2. Recognize the degree of the sector. Divide by 180dg and also then multiply it by the area the the triangle the sector is in.

3. Partition the circle right into unit squares. Determine the space of the sector and also multiply the area by the level of the circle.

4. Calculate the area that the circle. Then, determine the main angle of the sector and also divide this angle by 360dg to get a fraction. Multiply the area that the one by this fraction.


Guest Mar 21, 2017
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\(\frac\textcentral edge of sector\text360 degrees=\frac\textarea that sector\textarea that circle\)

I think the correct explanation is number 4.

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hectictar Mar 22, 2017
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