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Sagot :
Area of a Circle = (pi)*(radius)*(radius)
radius = (diameter)/2 = 12 / 2 = 6
Area of this Circle = (pi)*(6)*(6) = 36 pi
Answer: 36 pi , 113.04 (if using 3.14 as pi) , or 113.01 (if using actual pi)
radius = (diameter)/2 = 12 / 2 = 6
Area of this Circle = (pi)*(6)*(6) = 36 pi
Answer: 36 pi , 113.04 (if using 3.14 as pi) , or 113.01 (if using actual pi)
Answer: The area of the mirror is 113.14 sq. inches [approx.].
Step-by-step explanation: Given that a circular can till 375 ft² of land in 15 min.
We are to find the area of the mirror in square inches.
The AREA of a circle with radius 'r' units is given by
[tex]A=\pi r^2.[/tex]
The diameter of the circular mirror is 12 inches, so the radius of the mirror will be
[tex]r=\dfrac{12}{2}=6~\textup{inches}.[/tex]
Therefore, the area of the circular mirror is
[tex]A=\pi r^2=\frac{22}{7}\times 6^2=\dfrac{22\times 36}{7}=113.14~\textup{sq inches}~\textup{[approx.]}[/tex]
Thus, the area of the mirror is 113.14 sq. inches [approx.].
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