The figure that shows how a shape can be rotated about an axis to form a disc is (c) rectangle
How to determine the figure?
The shapes in the figures are given as:
A. Rectangle
B. Semicircle
C. Inscribed semicircle
D. Another Rectangle
When the first rectangle is rotated about the axis, it forms a spiral shape
Rotating a semi-circle and the inscribed semi-circle about its axis would form a hemisphere
However, when a rectangle that has one of it sides on the axis is rotated, it forms a cylinder or disc
Hence, the figure is (d) rectangle
Read more about rotation at:
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