Integral area function formula semicircle
Revolve 2 equations over axis
Differentiable graph
Continuous function
"Left" and "right" functions are equal at point
Integral area function formula isosceles triangle
Revolve 2 equations over arbitrary line
π∫ (axis - top)² - (axis - bottom)²
Differentiable function
∫ [multiplier] (top-bottom)^[something]
Integral area function formula equilateral triangle
(√3 )/4 * base²
Continuous graph
Base * height
Integral area function formula square
Integral area function formula "base"
