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Q. |
The development of the curved surface of a cone is a of a |
A. | sector, circle |
B. | segment, circle |
C. | segment, ellipse |
D. | arc, parabola |
Answer» A. sector, circle | |
Explanation: the development of the curved surface of a cone is a sector of a circle, the radius and the length of the arc of which are respectively equal to the slant height and the circumference of the base-circle of the cone. |
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