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What is the radius if the area of the garden is 81 times pi ft?
Wiki User
∙ 12y ago
The radius is 9 feet because pi*92 = 81*pi
Wiki User
∙ 12y ago
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What is the the area of a circle with a radius of 9?
Area= pi x radius squared. So radius (9) squared = 81, 81 x 3.14. See related link for more info.
If radius of a circle is diminished by 10 percent then it's area is diminished by?
Radius 10, area = 100 pi; radius 9, area = 81 pi
What is the area of a circle if the radius is 9 In?
Area of a circle of radius r = πr2Area of circle of radius 9 In = π(9)2 = π x 81 , putting value of pi we get= 3.14159625 x 81 = 254.46 sq. In
The area of a square garden is 81 square feet?
9
What is the volume of a cylinder with a radius of 9 cm and a height of 8 cm?
648pi. (pi = 3.14159...)Area of a circle = (pi) x (radius squared)= (pi)(9 squared) = (pi)81.Area of a cylinder = area of circle x height.= (pi)81 x 8= 648(pi)
What is the the area of a circle with a radius of 9?
Area= pi x radius squared. So radius (9) squared = 81, 81 x 3.14. See related link for more info.
If radius of a circle is diminished by 10 percent then it's area is diminished by?
Radius 10, area = 100 pi; radius 9, area = 81 pi
How do you find the radius of a circle if area is 81 pi?
Divide the 81 pi by pi, then square root it. (Use the formula for area of circle, which gives 81pi=pi*radius squared, but rearrange to find the radius). i.e. it's the square root of 81
What is the radius and diameter if the area of a circle is 81 square units?
pi*radius squared = 81 square units Divide both sides by pi and then square root both sides to find the value of the radius. radius = 5.077706252 or 5 units in length to one significant figure 2 times radius = diameter = 10 units in length
What is the area of a circle if the radius is 9 In?
Area of a circle of radius r = πr2Area of circle of radius 9 In = π(9)2 = π x 81 , putting value of pi we get= 3.14159625 x 81 = 254.46 sq. In
The area of a square garden is 81 square feet?
9
What is the area of a circle if the radius is 9?
i believe that it is 18 if the radius is 9 edit: wrong, area = pi*radius^2 so it's 3.1415926535*81=254.469
The area of a circle is 81 pi square feet What is the radius?
The area is 9 feet. You find the square root of 81 which is 9. I want circumference, not area.
What is the diameter of a circle that has an area of 81 square inches?
radius = sq rt of (81/pi) = 5.077706252 diameter = 2*077706252 = 10.1554125 inches
Circle A has radius 4 feet circle B has radius 9 feet What is the ratio of the area of circle A to the area of circle B?
Area(A)/ Area(B) = pi*rA2/pi*rB2 = rA2/rB2 = 16/81
What is the volume of a cylinder with a radius of 9 cm and a height of 8 cm?
648pi. (pi = 3.14159...)Area of a circle = (pi) x (radius squared)= (pi)(9 squared) = (pi)81.Area of a cylinder = area of circle x height.= (pi)81 x 8= 648(pi)
The area of a square garden is 81 square feet what is the length of each side?
9
