WebAboutTranscript. The area of a circle is pi times the radius squared (A = π r²). Learn how to use this formula to find the area of a circle when given the diameter. Created by Sal Khan and Monterey Institute for Technology and Education. Sort by: Top Voted. WebCircumference of a cicle in terms of radius:. Circumference = 2·π·r = 2·3.14·1.75 = 10.99 (*) In terms of diameter:. Circumference = π·d = 3.14·3.5 = 10.99 (*) In terms of area:. Circumference C = √ 4·π·A = √ 4·π·9.62 = 10.99 (*) (*) 11 meters exactly or limited to de precision of this calculator (13 decimal places). Note: for simplicity, the operations above …
The area of a circle is 78.5, what is its radius? - Wyzant
WebCircumference of a cicle in terms of radius:. Circumference = 2·π·r = 2·3.14·0.75 = 4.72 (*) In terms of diameter:. Circumference = π·d = 3.14·1.5 = 4.71 (*) In terms of area:. … WebDec 14, 2024 · Determine the radius of a circle. Let's assume it's equal to 14 cm. Substitute this value to the formula for circumference: C = 2 * π * R = 2 * π * 14 = 87.9646 cm. You can also use it to find the area of a circle: A = π * R² = π * 14² = 615.752 cm². Finally, … Circle terminology consists of the definitions of: Circumference – the distance around … literary apostrophe examples
What is the circumference of a circle with radius 1.5 m?
WebC = circumference π = pi = 3.1415926535898 √ = square root Calculator Use. This online calculator will calculate the 3 unknown values of a sphere given any 1 known variable including radius r, surface area A, volume V … WebJan 5, 2013 · What is the radius of a circle with circumference 5m? Radius of circle: 5/2*pi m. Area 9m x 5m? you do 9m x 5m =45m to easy. What is the area of the rectangle 9m x 5m? The area of a rectangle measuring 9m x 5m is 45 square meters. What is the radius of a cone with a area of 25m2 and a slant of 5m? WebSep 23, 2013 · The answer is in solving equation (1) for the diameter, D, and setting S = 100 mph, like this: D = Smph / (π ω x 0.0372) = 100 mph / (3.14 x 15 rev/min x 0.0372) = 57m diameter mark. Or 28.5m measured from the hub center to a point on a blade. You can see that almost half the rotor is in a 100-mph” zone”. You can solve equation (1) for ω ... importance of ncf