Considering that this sector covers 90° of the circle, we can presume that we are finding the area of a quarter or a figure that covers a one-fourth of the circle.
Since we are finding the area of a quarter, that will already be 1/4 the area of the circle;
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Step-by-step explanation:
Considering that this sector covers 90° of the circle, we can presume that we are finding the area of a quarter or a figure that covers a one-fourth of the circle.
Since we are finding the area of a quarter, that will already be 1/4 the area of the circle;
Therefore by substuting the given constraints;
Thus the area of that sector is 9π cm²