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a rocket is in the form of circular cylinder closed at the end and a cone of the same radius is attached to the top the radius of the cylinder is 2.5 meters and its height is 21 and its slant height of a cone is 8 metre calculate the total surface area of rocket

Posted by Shivam Singh 6 years, 3 months ago

CBSE > Class 10 > Mathematics

1 answers

Archit Arora 6 years, 3 months ago

Now according the question, Radius=2.5 Height of cylinder=21 Slantheight=8 Now we need tsa so, tsa of solid: 2πrh+πr^2+πrl so, 11x5x7.5= 412.5cm^2 ans

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