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Why do you square the radius when finding the area of a cirlce?
Because the circle is measured in square units.
What is the circumference of the circle with radius 39?
2*pi*39 measured in linear units
What is the radius of a circle of 6.5?
The radius of a circle of radius 6.5 units is 6.5 units.
What is the circumference of a circle when the radius equals 8.2?
2*pi*8.2 measured in linear units
How do you find the area of an circle when the radius is 15?
Area measured in square units = pi*152
The formula for area of a circle?
radius x radius = # pi X # = answer... pi x radius, square the radius
Why do you square the radius when finding the area of a cirlce?
Because the circle is measured in square units.
What is the circumference of the circle with radius 39?
2*pi*39 measured in linear units
What is the area of a circle with a radius of 4.6?
Area = pi*4.62 measured in square units
How is the area of circle caculated?
Area = pi*radius squared and measured in square units
What is the radius of a circle of 6.5?
The radius of a circle of radius 6.5 units is 6.5 units.
What is the circumference of a circle when the radius equals 8.2?
2*pi*8.2 measured in linear units
How do you find the area of an circle when the radius is 15?
Area measured in square units = pi*152
Why is the answer for arc length in units and not in square units?
Because it is still length. It is measured along a curve (arc), rather than a straight line. It can be found by multiplying the arc angle (in radians) by the radius. So a complete circle has an angle of 2*pi radians. Multiply this by the radius and you have 2*pi*radius, which is the circumference of a circle (measured in units, not square units).
What is the radius of a circle if the area is 4?
The radius of the circle is 2 units. * * * * * If the area is 4 units, the radius is 1.128 units
What does pi have to do with the area and circumference of a circle?
It is used in finding the circumference and area of a circle. Circumference = 2*pi*radius or pi*diameter measured in linear units Area = pi*radius2 measured in square units
What is the circumference of a circle of radius 2.3 units?
A circle with a radius of 2.3 units has a circumference of 14.45 units.
