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How many square feet is a 27 inch diameter minus a 24 inch diameter interior circle?
Area of circle-A = (pi) (Ra)2
Area of circle-B = (pi) (Rb)2
The difference in their areas is (pi) [(Ra)2 - (Rb)2] = (pi) (Ra + Rb) (Ra - Rb) =
(pi) (25.5) (1.5) = 38.35 pi = 120.166 square inches (rounded)
The questions asks for the area of the annulus in square feet: 0.8345 square foot
Check: (the old-fashioned way)
Area-A = (pi) (13.5)2 = 572.555
Area-B = (pi) (12)2 = 452.389
(572.555) - (452.389) = 120.166 yay!
120.166/144 = 0.8345 (rounded)
What else can I help you with?
How do you calculate the pitch circle diameter?
circle diameter minus center of pitch cirlce raius
What is the area of a walk that is 3' wide that is around a circular fountain that is 10 feet in diameter?
Area of outer circle minus area of inner circle: 132.7322896 - 78.53981634 = 54.19247327 square feet
How do you verify if a point lies on a circle?
If ... the square of (the x-coordinate of the point minus the x-coordinate of the center of the circle) added to the square of (the y-coordinate of the point minus the y-coordinate of the center of the circle) is equal to the square of the circle's radius, then the point is on the circle.
What is Circle minus square equals triangle?
It is probably a quiz question with nothing to do with mathematics.
What is the square root of minus 8?
The square root of minus 8 is equal to the square root of 8 times the square root of minus 1, or 2.8284i.
How do you calculate the pitch circle diameter?
circle diameter minus center of pitch cirlce raius
What is length of the radius of the circle. The points and 8203(minus and minus1111 and 8203minus and minus44 and 8203) and and 8203(55 and 820355 and 8203) are the endpoints of the diameter of a circ?
The points ​(minus−1111​,minus−44​) and ​(55​,55​) are the endpoints of the diameter of a circle. Find the length of the radius of the circle.
What is the area of a walk that is 3' wide that is around a circular fountain that is 10 feet in diameter?
Area of outer circle minus area of inner circle: 132.7322896 - 78.53981634 = 54.19247327 square feet
How do you verify if a point lies on a circle?
If ... the square of (the x-coordinate of the point minus the x-coordinate of the center of the circle) added to the square of (the y-coordinate of the point minus the y-coordinate of the center of the circle) is equal to the square of the circle's radius, then the point is on the circle.
A circle with a diameter of 10 inches has its center at the center of a square with 10 inch side find the area of the region that is inside the square and outside the circle?
The area of the circle is πr^2 = (π(10/2)^2) = 25π square inches. The area of the square is 10^2 = 100 square inches. The area of the region inside the square and outside the circle is 100 - 25π = 21.46 square inches.
What is Circle minus square equals triangle?
It is probably a quiz question with nothing to do with mathematics.
How do you find the height of a cone if you have the slant height and the diameter?
The height would be The square root of the square of the slant surface length minus the square of the radius of the cone at the base.
How do you find the perimeter of a rectangle with a semi circle attached to it?
add the perimeter of the rectangle, minus the side that'c covered by the semi circle. then, find the circumference of the semi circle [diameter x pi, divided by 2] and addd them together
What is the square root of minus 8?
The square root of minus 8 is equal to the square root of 8 times the square root of minus 1, or 2.8284i.
What is formula for a minus b and a plus b?
a square minus b square
How do you find the diameter of a circle if they give you the area?
Area = pi * (radius^2) Where (radius^2) is radius squared, or radius to the second power. do some algebraic steps: Area / pi = radius^2 radius^2 = Area / pi square root (radius^2) = square root (Area / pi) radius = (plus or minus) square root (Area / pi) If you are not working with imaginary numbers then radius = square root (Area / pi)
When you square a minus number does it stay a minus?
No, it becomes a plus, since minus x minus = plus
