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Answer:
Step-by-step explanation:
Curved surface area of a cone =πrl, where r is the radius of the cone and l is the slant height.
Radius =
2
Diameter
=35 cm
Hence, curved surface area of this cone =
7
22
×35×l=4070
⇒l=
22×35
7×4070
⇒l=37 cm
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