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The radius of any circle is the straight line distance from the centre of the circle to any point on the circumference of the circle.
The radius being 21 cm makes no difference to the definition of the radius; it just means that the straight line distance from the centre of that circle is 21cm away from any point on the circumference of that circle.
The radius of a circle with a radius of 21 cm is 21 cm.
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What is the area of a circle with the radius 21cm?
A = 1385cm2
What is the radius of the circle if circumference is 132cm?
Radius of circle: 132/2pi = 21cm to the nearest integer
What is the area of a circle that has a radius of 21cm?
A = 1,385.4 cm2
What is the area of the circle if the diametere is 21cm?
A = 346.36 cm2
If a circle has the diameter of 21cm what is the area?
10.5 x 10.5 x pi = 346.5 sqcm
What is the area of a circle with the radius 21cm?
A = 1385cm2
What is the radius of the circle if circumference is 132cm?
Radius of circle: 132/2pi = 21cm to the nearest integer
What is the area of a circle that has a radius of 21cm?
A = 1,385.4 cm2
What is the area of a circle with a radius of 21cm?
A circle with the radius of 21cm would have an area of approximately 1384.74 cm. You would find this by using the equation of pi*(radius^2) = pi*(21^2).
What is the approximate diameter of a circle whose circumference is 21cm?
The approximate diameter of a circle whose circumference is 21cm is: 6.68cm
What is the answer d21cm?
area of a circle and the question is d=21cm
What is the area of the circle if the diametere is 21cm?
A = 346.36 cm2
If a circle has the diameter of 21cm what is the area?
10.5 x 10.5 x pi = 346.5 sqcm
Wha is the radius of a circle?
The radius of a circle is half the circle's diameter
What is the radius of a circle where d is the diameter of the circle?
the radius of a circle is r
What is the radius of the circle equal to?
Radius of a circle= Perimeter of the circle/2*pi Radius is half the diameter Radius is the length of a straight line from the center point of the circle to the edge of the circle.
If the radius of a circle is r what is the diameter of the circle?
The radius of a circle is half the diameter so if the radius of a circle is r, then the diameter is 2r.
