Geometry

Perimeters, areas and volumes of plane and solid shapes using standard formulas.

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Computes a side of a right triangle using a² + b² = c².

Calculates circumference O = 2πr and area S = πr² from radius or diameter.

From legs a and b computes hypotenuse, angles, area, and perimeter of a right triangle.

From sides a, b, c (SSS) computes perimeter, area (Heron), and angles via the cosine law.

Calculates perimeter O = 2(a+b) and area S = a×b from sides a and b.

Calculates perimeter O = 4a and area S = a² from side a.

Calculates trapezoid area S = ((a+b)/2) × h from parallel bases and height.

Calculates parallelogram area S = a × h from base a and height h.

Calculates rhombus area S = (d₁ × d₂)/2 from both diagonals.

Estimates ellipse perimeter and area from semi-axes a and b (area S = πab).

Calculates volume V = a³ and surface S = 6a² from edge a.

Calculates volume V = a×b×c and surface area from edges a, b, and c.

Calculates volume V = (4/3)πr³ and surface S = 4πr² from radius r.

Calculates volume V = πr²h and surface area from radius r and height h.

Calculates cone volume V = (1/3)πr²h from base radius and height.

Calculates square-base pyramid volume V = (1/3)a²h from base side a and height h.

Hub pointing to specific area and volume shape calculators (no generic compute).

Calculates rectangle or square diagonal length: d = √(a² + b²).

From rise and run computes slope percent and angle in degrees.