Formula of geometric figure

Formula of geometric figure

Square s = square of side length C = side length x side length
Triangle s = base x height divided by 2} C = side length + side length
Parallelogram s = base x height}
Trapezoid s = (top bottom + bottom bottom) x height divided by 2}
Rectangle s = length x width C = (length x width) x2
The square of the circle s = π D C = π R