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# Volumes of Solids with Known Cross-Sections Exercises

### Example 1

Let R be the region enclosed by the x-axis, the graph y = x2, and the line x = 4. Write an integral expression for the volume of the solid whose base is R and whose slices perpendicular to the x-axis are semi-circles.

### Example 2

Let R be the region enclosed by the x-axis, the graph y = x2, and the line x = 4. Write an integral expression for the volume of the solid whose base is R and whose slices perpendicular to the y-axis are squares.

### Example 3

Let R be the region enclosed by the x-axis, the graph y = x2, and the line x = 4. Write an integral expression for the volume of the solid whose base is R and whose slices perpendicular to the y-axis are equilateral triangles.

### Example 4

Let R be the region bounded by y = x and y = x2. Write an integral expression for the volume of the solid with base R whose slices perpendicular to the y-axis are semi-circles.

### Example 5

Let R be the region bounded by y = x and y = x2. Write an integral expression for the volume of the solid with base R whose slices perpendicular to the y-axis are squares

### Example 6

Let R be the region bounded by y = x and y = x2. Write an integral expression for the volume of the solid with base R whose slices perpendicular to the x-axis are equilateral triangles

### Example 7

Let R be the region bounded by x2 + y2 = 1. Write an integral expression for the volume of the solid with base R whose slices perpendicular to the y-axis are semi-circles.

### Example 8

Let R be the region bounded by x2 + y2 = 1. Write an integral expression for the volume of the solid with base R whose slices perpendicular to the x-axis are equilateral triangles.

### Example 9

Let R be the region bounded by x2 + y2 = 1. Write an integral expression for the volume of the solid with base R whose slices perpendicular to the x-axis are squares.