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Pi r squared is the formula for the area of a circle. 2 pi r squared is twice that.
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∙ 10y ago
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How do you get the radius when you are given the circumference?
Let C be the circumference, r be the radius, and (pie)= 3.141592654 C = 2 x (pie)x r r = C ÷ (2 x (pie))
How do you find area of a cylinder?
(2)(pie)(r)(h) + (2)(pie)(r - squared) = tot area of a cylinder
Is the circumference 3 times the radius?
No, the formula for a circumference of a circle is 2(pie)r For example, if r is 6, the the circumference is 12(pie)
What is the radius of an 18ft circumference pool?
since c of the pool is 18 then 2pieR = 18 /2 pieR=9 /pie R=9/pie the radius is 9/pie
How do you find the circumference of a circle with the radius?
C=2(pie)r Example: C=2(3.14)2 C=6.28(2) C=15.56
What are the steps for area of a circle?
pi multipied by the radius sqaured all divided by 2 pi*r^2 ------ 2
What is the surface area of half a sphere?
its 2 pie r squared BUT you have to add back the base (a circle) which is pie r2 The original formula is 4 pie r squared Your new formula is (2 pie r squared + pie r squared)
How do find the diameter of the circle in terms of pi?
perimeter of a circle = pie *r^2 Hence r^2 = perimeter/ pie hence r = (perimeter/Pie)^1/2 Hence diameter = 2r= 2* ( perimeter?pie) ^1/2
What are some non-examples of area?
Area= r x sqaured
What is 2 sqaured?
2 x 2 = 4
How do you get the radius when you are given the circumference?
Let C be the circumference, r be the radius, and (pie)= 3.141592654 C = 2 x (pie)x r r = C ÷ (2 x (pie))
How do you find area of a cylinder?
(2)(pie)(r)(h) + (2)(pie)(r - squared) = tot area of a cylinder
What is the radius of a circle with circumference of 2 pie?
radius = 1, C=2(pie)r
What is and pie r 2 an example of?
A circumference.
What is the circumference and area of a 8 in circle?
if the radius is 8 in then circumference = 2 pie r= 2 * 3.14 * 8= 50.24 in area = pie * r * r = 3.14 *8 * 8= 200.96
How do you solve ellipse problems?
A= pie r^2
Which 2 sqaured numbers equal 65?
1 and 64
