Area and Perimeter Basic Shapes Formulas
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Area of trapezoid
A= ½ h(b₁+ b₂)
Area of parallelogram
A=bh
Area of rectangle
A=length x width
Area of triangle
A=½(base x height)
Area of circle
A=πr²
Circumference Circle
C = 2πr or C = πd
Perimeter of Rectangle
P = 2L + 2w
