Answer:
27π or 84.78 square units
Explanation:
You want the area of 3/4 of a circle of radius 6.
Area
The area of a circle is given by ...
A = πr² . . . . . where r is the radius
The figure shown is 3/4 of a circle, so its area for r = 6 will be ...
A = 3/4·π·6² = 27π . . . . square units
For π = 3.14, the numerical value of this is ...
27·3.14 = 84.78 . . . . square units
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Additional comment
You will notice in the attachment that the value using "the π button" has a different decimal fraction than the value using 3.14.
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