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What is the formula to calculate the area of a circle?
*=multiplication symbol /=division symbol r*(r*ㅠ)=r2 ......... radius*(radius*pi)=radius2 ........... radius times the radius times pi equals radius squared HINT HINT HINT an easier way to put this is .......... d*ㅠ/2=n ............. diameter*ㅠ/2=answer .......... diameter times pi divided by two equals the answer
What is the area of the circumference of a circle with diameter 7 yd?
Use the formulae for the area and circumference of a circle, replacing the symbol for the radius or the diameter with the known radius or diameter. As a reminder, the radius is 1/2 the diameter.Circumference = pi x diameter area = pi x radius squared
What is the area of a circle if the radius is 7 mm?
The formula for an area of a circle is the greek symbol "pi" times the radius squared. A = π * r2 r = radius π = 3.14 Now, your radius is given to you in millimeters. Generally answers are given in meters. 7 mm (millimeters) is equal to .007 m (meters).
How do you find the area of an oval?
well, an oval is a curved shape like the circle, so we use the same basic principle of πr² (or pi multiplied by (radius squared)). however, unlike the circle, the oval as two differing radii (plural of radius!) so we have to take that into account and adjust our formula accordingly. so the formula instead of squaring one radius, we measure both radii (horizontal radius * vertical radius) an then we multiply that by pi. the simple form of the formula is: π*(r1*r2) r1= horizontal radius r2= vertical radius π is the symbol for pi hope that helps!
How do you get the diameter from the radius?
to get the diameter from the radius you simply multiply the radius by 2 since the radius is half the diameter. d=2r where d = diameter and r = radius
