2a. show that the curved surface of the cone is πrl
2b.a 210 degree sector is removed from a circle of radius 14cm and bent to form a cone . Calculate the area of the curved surface area of the cone.
1 answer
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2b.a 210 degree sector is removed from a circle of radius 14cm and bent to form a cone . Calculate the area of the curved surface area of the cone.
1 answer
1 answer
8 answers
11 answers
8 answers