Mathematical Concepts and Equations

Flashcards covering key mathematical concepts, equations, and definitions.

Equation of a Circle

The standard form is (x - h)² + (y - k)² = r²

Area of a Regular Polygon

The formula for area is A = ½ ap, where a is the length of a side and p is the perimeter.

Radians to Degrees Conversion

multiply by (180/π).

Degrees to Radians Conversion

multiply by (π/180).

Polygon Interior Angle Sum

(n-2) × 180 degrees

Rhombus+Kite

A=1/2(d1)(d2)

Weighted Average

w1x1+w2×2/w1-w2

Rotation Rules

0*=(x,y)

90*=(-y,x)

180*=(-x,-y)

270*=(y,-x)

Arc Length+Sector Area

Density/population density