In Problems 6-10, let R be the region bounded by the semicirclex=squareroot4y2 and the y-axis. Each problem will describe the cross sections of a solid that are perpendicular to the y-axis. Write an integral expression that can be used to find the volume of the solid (do not evaluate).

10) The cross sections are quarter circles with the radius in R.

In Problems 11-15. let H be the region bounded by the lines y = 4 x, I = 21 and the x-axis. Each problem will describe the cross sections of a solid. Find the 1urolume of that solid {you @ evaluate these problems]. 1 1] The cross sections are squares perpendicular to the x-axis with one edge in R. 12] The cross sections are semicircles perpendicular to the y-axis with the diameter in R. 13] The cross sections are equilateral triangles perpendicular to the x-axis with one edge in R. 14] The cross sections are squares perpendicular to the y-axis with the diagonal in R