Riemann Sums: Left and Right Endpoints and Midpoints

What kind of Riemann Sum is described by the diagram?

• Left Riemann sum

• Right Riemann sum

• Midpoint Riemann

• Trapezoidal Riemann

Which of the following Riemann Sums deals with the middle points of the graph?

• Left Riemann Sum

• Right Riemann Sum

• Midpoint Riemann Sum

What is the formula used to approximate the area under the curve