Circles
Area of a Rectangle
A = l ⋅ w
Area of a Parallelogram
A = b ⋅ h
Area of a Circle
A = πr2
Area of a Trapezoid
A = ⋅( b1 + b2 )⋅ h
The midpoint formula.
What is x1+x2/2, y1+y2/2
What is an area of a circle with a diameter of 50
157.07963267