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SECTION-B. Q.6
volume of cylinder= πr^(2)h
343πcm^(3) = πr^(2) x 7
( pi get cancelled both sides)
so,
343 = r^(2) x 7
343/7 = r^(2)
49 = r^(2)
√49 = r
therefore r = 7
total surface area = 2πr (r+h)
= 2 x 3.14 x 7 (7+7)
= 43.96 x 14
= 615.44 cm^(2)
SECTION-A. Q.6
A triangular prism has 5 faces.
sorry bro if I give you all the answers it will take a very long time, here are two answers.
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