Find Radius With Area. Draw a radius circle around a location in google maps to show a distance from that point in all directions. (that answer makes sense, because when you multiply the radius of a sphere by 3, you multiply its surface area by 3² or 9.) (we didn't exactly triple the original surface area.
Note that units of length are shown for convenience.
How to find the area of a circle, given a radius or a diameter. Finding radius of a circle when you have the area (grade 9 applied lesson 8.1). This is often used to find the radius of an arch. How to find the area of a circle, given a radius or a diameter.