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Mathematics
Grade9
Easy
Question
If angle is , what is the area of sector BOX in square meters? (radius = 15 m)
225
115
15
75
Hint:
Area of the sector
The correct answer is: 75
To find the area of a sector, simply multiply the total area of the circle by the fraction of the part you are looking at. In this case, our area will come from the following:
To find the fractional part of the circle we care about, take the number of degrees in over the total number of degrees in a circle ):
So, we find our answer by multiplying these two parts together: