The following is the complete set of commonly used mathematical formulas in junior high school. It is essential to master the basic formula skillfully for your reference.

Summary of junior high school mathematics formula table

Commonly used junior high school math formula lateral area: s = c * h；;

Side area of oblique prism: s = c'* h；;

Lateral area of a regular pyramid: s =1/2c * h';

Side area of prism: s =1/2 (c+c') h;

Area of frustum side: s =1/2 (c+c') l = pi (r+r);

Surface area of the ball: s = 4pi * R2；;

Cylindrical lateral area: s = c * h = 2pi * h

Lateral area of the cone: s =1/2 * c * l = pi * r * l;

Arc length formula: l=a*r, where a is the radian number of central angle r > 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 section area and l is the side length;

Cylinder volume formula: v = s * h；;

Cylinder: V=pi*r2h.