A curved surface of a cone, based diameter 18cm, is formed from a sector of a circle, radius 15cm. find
(a) the angle of the sector.
(b) the total surface area.?
2 answers
what exactly are you asking?
Visualize a common conical paper cup found at water coolers cut open.
What shape do you see?
How does the circumference of the base of the cone relate to the arc length of the cut-open sector?
Let me know what your answer to this question.
What shape do you see?
How does the circumference of the base of the cone relate to the arc length of the cut-open sector?
Let me know what your answer to this question.
1 answer