lexhorton2002
16.04.2020 •
Mathematics
A circle has a radius of 3 feet. What is the area of a sector bounded by an arc of 90 degrees?
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Ответ:
Step-by-step explanation:
area of circle=πr²
area of reqd. sector=πr²/4
(∵90/360=1/4)
reqd. area=π×3²/4=9π/4≈(9×3.14)/4≈7.065 square feet.
Ответ:
144 ft² = 36 ft² + 4x
The value of x from the equation is 27. Therefore, the answer to the question above is letter D. 27 ft².