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A circle with a diameter of 18 cm has a radius of 9 cm, since the radius is half the diameter. The circumference of the circle can be calculated using the formula (C = \pi d), which gives approximately 56.55 cm. The area can be found using the formula (A = \pi r^2), resulting in approximately 254.47 cm². This circle represents a two-dimensional shape where all points are equidistant from the center.
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What is the radius of a circle with a 36cm diameter?
It's 18 cm. The radius is half the diameter of a circle. Half 36 cm is 18 cm.
What is the area of a circle that has a diameter of 18 cm?
A circle with a radius of 9 cm has an area of 254.47 square cm
What is the radius of a circle if its diameter is 36 cm?
It is 18 centimeters because your radius is exactly half of the diameter in any circle
What is the diameter of a circle with an area of 254 cm?
To find the diameter of a circle with an area of 254 cm², you first need to calculate the radius. The formula for the area of a circle is A = πr², where A is the area and r is the radius. So, 254 = πr². Solving for r gives you r ≈ √(254/π) ≈ 9 cm. The diameter of a circle is twice the radius, so the diameter of this circle is approximately 18 cm.
What is the circumference and the area of a circle whose diameter is 18 cm?
circumference = pi*18 cm area = pi*92 square cm
