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How many square feet are in a 40 foot diameter circle?
Oh, dude, you're hitting me with some math here! So, the area of a circle is π times the radius squared. If the diameter is 40 feet, the radius is 20 feet. Plug that into the formula, and you get an area of 400π square feet. But who's really counting, right?
What is the surface area of a cone with a slant height of 40 and a radius of 20?
A slant height of 20 and base circle radius (r) of 20 gives slant length (s) = 28.284 equation for cone surface area : (pi * r * s) + (pi * r2) = 1777.136 + 1256.637 = 3033.773 units2
If the diameter of a circle is 40 m then what is the area in terms of pi?
If the diameter of a circle is 40 m then the area (in terms of Pi) is: about 400pi m2
How many degrees are in one ninth of a full circle?
40 degrees
What would the perimeter of a 20ft semicircle be?
That depends on what you mean by a "20 ft semicircle".A semi-circle is a half circle.A 20 ft circle could be:A circle of diameter 20 ftThe perimeter of the semicircle is half the circumference plus the diameter → perimeter = 1/2π 20 ft + 20 ft= 10π + 20 ft≈ 51.42 ftA circle of radius 20 ftThe perimeter of the semicircle is half the circumference plus double the radius → perimeter = 1/2 2π 20 ft + 2 x 20 ft= 20π + 40 ft≈ 102.08 ftA circle of circumference 20 ftThe perimeter of the semicircle is half the circumference plus the diameter → perimeter = 1/2 20 ft + 20 ft ÷ π= 10 ft + 20/π ft≈ 16.37 ftHowever, if a 20 ft circle is a circle with a circumference (= perimeter) of 20 ft then a 20 ft semi-circle could be a semicircle with a perimeter of 20 ft→ perimeter = 20 ft
What is the radius of a circle of perimeter 40 cm?
Radius = 40/2pi cm
What is the radius of a circle with a circumference of 40 inches?
radius = 40/(2*pi) in inches
What is the area of a circle with a radius of 40cm?
A circle with a radius of 40 cm has an area of 5,026.55 square cm.
Is a circle with a area of 40 more less or same than a circle with a radius of 4?
In order to even discuss this question, we must assume that the unit of the '40' is the square of the unit of the '4'. -- The radius, diameter, and circumference of the circle with an area of 40 are each 10.794% shorter than the corresponding measurement in the circle with radius = 4 . -- Its area (40) is 20.423% less than the area of the circle with the radius of 4 .
What is the radius of a circle whose circumference is 40 pi?
The radius of a circle whose circumference is 40pi is 20 units.
How many square miles in a 40 mile radius?
The formula for the area of a circle is: 3.14 (pi) times the radius squared. A circle with a 40 mile radius would have an area of 3.14 x 40 x 40 = 5024 square miles.
What is the radius of a circle with area of 40 square inches?
Radius = 3.57 inches.
What is the circumference of a circle with a radius of 40 feet?
251.2 feet
Diameter of circle in inches if the radius is 20 feet.?
40'
What is the diameter of a circle with a radius of 20 feet?
Diameter = 2 * radius So in this case, 40 feet.
If the diameter of a circle is 40 millimeters what is the length of the radius?
20 millimeters
What is the diameter of a circle whose radius is 20 ft?
40 ft
