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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 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 area of a circle when a chord length is 9 cm and its midpoint is 6 cm from the circle's centre?
Using 3.14 as Pi the area of circle is: 0
What is the exact area of a circle with a diameter of 6cm?
The exact area = pi*32 or 9*pi square cm
What is the area of a circle with 120 degrees if the radius is 9 cm?
I assume you want the area of the sector with angle 120o and radius 9 cm: 120o is 120/360 = 1/3 of a full circle. ⇒ area of sector is 1/3 area of full circle ⇒ area_of_sector = 1/3 x π x radius2 = 1/3 x π x (9 cm)2 = 27π cm2 ≈ 84.82 cm2
