![]() We will need to solve for the value of the radius R to find out when this will happen. The area of circle can be a whole number in certain cases. Can The Area Of A Circle Be A Whole Number? To find out when the area is smaller than the diameter, we must set up an inequality and solve for R: The diameter (D) of a circle with radius R is given by the equation The value of the area of a circle can be smaller than the value of the diameter in certain cases. However, the units will be different (area is in square units, while diameter is in linear units). The area of a circle can have a smaller value than the diameter of the circle in some special cases. Can The Area Of A Circle Be Smaller Than The Diameter? (zero) 02 A > C This table summarizes how area The table below summarizes the relationship between area and circumference of a circle. ![]() Remember that it is not possible to have a negative radius for a circle. For example, if R = 3, the area is 9π square units, while the circumference is 6π square units. For 0 2, the area will be greater than the circumference.The solution R = 0 gives us a circle of radius zero, with zero area and zero circumference (more on this later).įor any other values of R, the area and circumference will be different: The first solution, R = 2, gives us a circle with an area of 4π square units and a circumference of 4π linear units. To find out when the area has the same value as the circumference, we must set the area equal to the circumference and solve for R: The circumference (C) of a circle with radius R is given by the equation Remember that the area (A) of a circle with radius R is given by the equation The area of a circle can be the same as the circumference when R = 0 or R = 2. However, the units will be different (area is in square units, while circumference is in linear units). The area of a circle can have the same value as the circumference in two special cases. Can The Area Of A Circle Be The Same As The Circumference? Let’s start off with a common question regarding area and circumference of a circle. We can use formulas for the area and circumference of a circle to relate these two concepts and also to relate them to radius and diameter of the circle. ![]() Questions About Circles (Area, Circumference, Diameter, & Radius) In this article, we’ll answer 8 common questions about circumference, area, radius, and diameter of a circle. Of course, we can also find specific R values (or ranges of values) to tell us when the circumference, area, and diameter satisfy certain relationships. The circumference also tells us how the area of a circle changes as the radius increases or decreases. The value of the area is equal to half the circumference multiplied by the radius of the circle. So, how are the circumference and area of a circle related? The circumference of a circle has linear units, while area of a circle has square units. Circumference of a circle formula free#Improve your skills on geometry topics and strengthen your understanding of area, volume, perimeter concepts with our collection of free and online calculators at and circumference of a circle both involve the constant π and the radius of the circle, but their units vary. ∴ Circumference of circle having diameter 3.65 m is 11.461 m, area is 10.45 m² and radius is 1.825 m. ∴ Circumference of Circle is 157 cm, area is 1962.5 cm² and diameter is 50 cm.Įxample 2: Circle diameter is 3.65 m. Substitute R and π value in the above equation Example 1: Find the circumference and area of circle, if its radius is 25 cm? ![]()
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