b) A right-angled triangle whose sides measure 3 cm, 4 cm, and 5 cm is rotated about
the side of length 4 cm. Find the curved surface area of the solid obtained. Write
your answer in terms of t.
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Step-by-step explanation:
on rotation it will formed cone with radius 3 and slant height 5
curved surface area=π*r*l
=3.14*3*5=47.1cm2
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