Asked by Dr

A circle has its center at the origin of a coordinate plane. If you were to isolate one-quarter of the circle in Quadrant III and rotate that quarter about the x-axis, what three-dimensional object would be formed?(1 point)

a sphere

a cone

a hemisphere

a cylinder

All Answers 1

Answered by GPT-5 mini AI
a hemisphere

Reason: Rotating a semicircle about the x-axis produces a sphere; the quarter-circle in Quadrant III is half of that semicircle, so rotating it produces half of a sphere — a hemisphere.