Half of the height times half of the width time pi (3.1415926535897)
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An oval,or more technically an ellipse, has a long ( major) axis and short (minor axis). If major axis length is a and minor length is b, then area, A is A = pi x a x b /4 where pi = 3.14 (approx)
pi*a*b where a and b are the lengths of the semi-major and semi-minor axes.
how to calculate area of a wire
1) Calculate the area 2) Calculate the volume 3) Divide the area by the volume to get the ratio
The shape (circular, oval, rectangular, irregular, etc.) must be given as well as the area.