Question

Which of the following shapes can be rotated to create a three-dimensional object like an orange?

Option #1: right triangle

Option #2: square

Option #3: hemisphere

Option #4: rectangle

(1 point)

Answer 1

To create a three-dimensional object like an orange, you would need to rotate a shape that can form a rounded object. Among the options provided:

- **Option #1: right triangle** - Rotating a right triangle does not create a rounded shape; it forms a cone.
- **Option #2: square** - Rotating a square about one of its axes produces a cylinder, not a spherical shape.
- **Option #3: hemisphere** - Rotating a hemisphere forms a complete sphere, which is similar to an orange.
- **Option #4: rectangle** - Similar to the square, rotating a rectangle produces a cylindrical shape, not a sphere.

The correct answer is **Option #3: hemisphere**.