a solid cone has circular base of radius 5cm and a total surface area of 285cm^2. find it's slant height
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Answer:
Slant Height (l) = 13.14cm
Step-by-step explanation:
radius of cone = 5cm
TSA of cone = 285cm²
=> πr(r + l) = 285
=> π × 5 (5 + l) = 285
=> 5 + l = 285 ÷ 5 × π
=> l = 57 ÷ π - 5
=> l = 13.14cm
That's solve,
Hope this will help you
Thank You
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