Hor Kuok Theng's answer to Royal Lim's Secondary 4 E Maths Singapore question.
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The diagram has almost all the information required to answer the question.
The only thing missing would be the formula for the surface area of a cone.
In the case of a Right Cone, (as in the diagram), the formula is :
Surface Area =
(Pi x Radius) x (Radius + Slant height)
The only thing missing would be the formula for the surface area of a cone.
In the case of a Right Cone, (as in the diagram), the formula is :
Surface Area =
(Pi x Radius) x (Radius + Slant height)
Date Posted:
4 years ago
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