The surface area is about 153.94 units2 (square units)
Surface Area = 4 (pi) r2
For a radius of 3.5 units = 4 x 3.1416 x (3.5)2 units squared = 153.9384 units2
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The radius of a circle with an area of 35 mm squared is 3.34mm
The radius of a circle with an area of 35 square inches is 3.34 inches.
A circle with a radius of 35 cm has an area of 3,848.45 square cm.
If 35 is the radius, then its 70.
It is 35/2pi = 5.57 yards, approx.