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Surface Area formula for Spheres (TSA)
4 pie r²
Surface Area formula for Cones (TSA)
Pie r² + Pie rs
Volume formula for Spheres (V)
4/3 Pie r³
Volume formula for Cones (V)
1/3 pie r² h
Radius (R)
half of a diameter.
Diameter
any straight line segment that passes through the centre of the circle and whose endpoints lie on the circle.