PERIMETER AND AREA FORMULARS

Square: s2 The area of a square is the length of a side squared.
Rectangle: L*W The area of a rectangle is the length multiplied by the width.
Circle: pi*r2 The area of a circle is pi (about 3.14) times the radius squared.
Triangle: 0.5*b*h The area of a triangle is one half the base times the height.
	square = 4a rectangle = 2a + 2b triangle = a + b + c circle = 2pi r