Use this graph of f consisting of a quarter circle and two line segments.

Question

Use this graph of f consisting of a quarter circle and two line segments.

Based on the graph, 

20 + π.

20 + 4π.

40 + π.

40 + 4π.

Answer 1

∫₀¹⁰f(x)dx = 2·4 + 4π + 8 + 24 = 40 + 4π