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What are the mathematical formulas in the first volume of grade seven?
Side area of right-angle prism S=c*h

Side area of oblique prism s = c' * h

The side area of a regular pyramid is S= 1/2c*h'

The side area of the prism is s = 1/2(c+c')h'

The lateral area of the frustum of a cone is s =1/2 (c+c') l = pi (r+r) l.

The surface area of the ball S=4pi*r2.

The lateral area of the cylinder is s = c * h = 2pi * h

The lateral area of the cone is s =1/2 * c * l = pi * r * l.

The arc length formula l=a*ra is the radian number r > of the central angle; 0

Sector area formula s= 1/2*l*r

Cone volume formula V= 1/3*S*H

Cone volume formula V= 1/3*pi*r2h

Oblique prism volume V=S'L Note: where s' is the straight cross-sectional area and l is the side length.