api: YAML JSON TOON Database
version: 1.0.0
format: toon
dataset:
  id: 2797
  slug: geometric-formulas
  title: Geometric Formulas
  description: "Common formulas for area, perimeter, surface area, and volume."
  summary: "Area, surface area and volume formulas for the common plane and solid shapes, with the Pythagorean theorem, plus trapezoids, ellipses, cones, pyramids, regular polygons, Heron's formula, the distance formula and the law of cosines. Each row names the variables so the formula can be applied directly."
  use_when[2]: You need the formula for the area or volume of a shape and the meaning of each symbol.,You are checking a geometry calculation.
  caveats[2]: "Units multiply: areas are in square units and volumes in cubic units.","Pick the right measurement: height is perpendicular to the base, not the slanted side."
  related[3]: common-mathematical-constants,trigonometric-identities,spatial-data-structures
  entry_count: 20
  fields[3]{section,field,type,example}:
    data,shape,string,Circle
    data,formula,string,A = pi r^2
    data,variables,string,"A: area, r: radius"
  category: Mathematics
  category_slug: mathematics
  tags: "math,geometry,formulas"
  view_count: 52
  created_at: 1793403093
  updated_at: 1793403093
data[20]{shape,formula,variables}:
  Circle,A = pi r^2,"A: area, r: radius"
  Rectangle,A = l w,"A: area, l: length, w: width"
  Triangle,A = 1/2 b h,"A: area, b: base, h: height"
  Sphere Surface Area,A = 4 pi r^2,"A: surface area, r: radius"
  Sphere Volume,V = 4/3 pi r^3,"V: volume, r: radius"
  Cylinder Volume,V = pi r^2 h,"V: volume, r: radius, h: height"
  Pythagorean Theorem,a^2 + b^2 = c^2,"c: hypotenuse, a,b: legs of right triangle"
  Square,A = s^2,"A: area, s: side length"
  Parallelogram,A = b h,"A: area, b: base, h: perpendicular height"
  Trapezoid,A = (a + b) h / 2,"A: area, a and b: parallel sides, h: height between them"
  Ellipse,A = pi a b,"A: area, a: semi-major axis, b: semi-minor axis"
  Regular Polygon,A = a P / 2,"A: area, a: apothem, P: perimeter"
  Triangle (Heron's formula),A = sqrt(s (s - a) (s - b) (s - c)),"A: area, a, b, c: side lengths, s: semi-perimeter (a + b + c) / 2"
  Cube Volume,V = s^3,"V: volume, s: edge length"
  Rectangular Prism Volume,V = l w h,"V: volume, l: length, w: width, h: height"
  Cylinder Surface Area,A = 2 pi r (r + h),"A: total surface area, r: radius, h: height"
  Cone Volume,V = pi r^2 h / 3,"V: volume, r: base radius, h: height"
  Pyramid Volume,V = B h / 3,"V: volume, B: base area, h: height"
  Distance Formula,d = sqrt((x2 - x1)^2 + (y2 - y1)^2),"d: distance, (x1, y1) and (x2, y2): points"
  Law of Cosines,c^2 = a^2 + b^2 - 2 a b cos(C),"a, b, c: side lengths, C: angle opposite c"