Answer Expert Verified
So, the area of the given circle will be
πcm^2
or 3. 14cm^2 or 22/7cm^2. 1)A Circle is a collection of points in which the points are equidistant from a particular point. ={A/360°}× π×r^2.
What estimate is closest to the area of a circle with a radius of 8 cm?
The area of a circle is equal to
Pi π times the radius
r squared. Substitute in the value of the radius r=8 into the formula for the area of a circle. Pi π is approximately equal to 3.14 .
What is the area of 1cm circle?
Answer Expert Verified
So, the area of the given circle will be
πcm^2
or 3. 14cm^2 or 22/7cm^2. 1)A Circle is a collection of points in which the points are equidistant from a particular point. ={A/360°}× π×r^2.
What estimate is closest to the area of a circle with a radius of 2 cm?
A
= 12.57cm2
rounded off to two decimal places.
What estimate is closest to the area of a circle with a radius of 4 cm?
The area of a circle is equal to
Pi π times the radius r
squared. Substitute in the value of the radius r=4 into the formula for the area of a circle. Pi π is approximately equal to 3.14 .
What will be area of the circle?
The area of a circle is
pi times the radius squared
(A = π r2).
What do you call the area of a circle?
How To Find The Area Of A Circle. Recall that the relationship between the circumference of a circle and its diameter is always the same ratio, 3.14159265 ,
pi
, or π . That number, π , times the square of the circle’s radius gives you the area of the inside of the circle, in square units.
What’s the area of the radius is 8?
We know that, the Area of the circle with radius r is: A=πr2,where,r=8 inches given. So, A=π(8)2=
64π square inches
.
What is the area of a 40cm circle?
Q. What is the area of a circle with a radius of 40cm? Hence, area of the circle =
5024 cm square
.
How do you find the radius?
- When the diameter is known, the formula for the radius of a circle is: Radius = Diameter / 2.
- When the circumference is known, the formula for the radius is: Radius = Circumference / 2π
- When the area is known, the formula for the radius is: Radius = ⎷(Area of the circle / π)
How do you find the radius of a circle with the area?
To find the radius,
divide the area by pi, then take the square root
.
How do you find the area of a circle with the radius?
Suppose a circle has a radius ‘r’ then the area of circle = πr
2
or πd
2
/4 in square units, where π = 22/7 or 3.14, and d is the diameter. Area of a circle can be calculated by using the formulas:
Area = π × r
2
, where ‘r’ is the radius.
What is the area of 6cm circle?
The area of a circle is equal to
Pi π times the radius r squared
. Substitute in the value of the radius r=6 into the formula for the area of a circle. Pi π is approximately equal to 3.14 . Raise 6 to the power of 2 .
What is the circumference with a radius of 4?
The perimeter or circumference of the circle can be found using the equation C=2π(r), where r= the radius of the circle. Since we have two semi-circles we can find the circumference of one whole circle with a radius of 4, which would be
8π
.
What is the area of radius of 4cm?
The solution to the formula for a 4cm radius is
50.24 cm^2
.
How do you find the diameter with the area?
Divide the area (in square units) by Pi
(approximately 3.14159). Take the square root of the result (Example: 310.56). This is the radius. Now double the radius to get the diameter (Example: 621.12 meters).
