Question

volume of cylinder of 750πcm^3
and height 30cm. find radius and T.S.A
​

Answer 1

Answer:

r≈2.82cm

Step-by-step explanation:

this is your answer

hope it will helps

Answer 2

Answer:

volume of cylinder = 750π cm³

height of the cylinder = 30 cm

v = π r² h

750 π = π r² x 30

$\frac{750}{30} = r^{2} \\\\r^{2} = 25\\r = 5 cm$

total surface area = 2πrh + πr²

                                = 2 x 3.14 x 5 x 30 + 3.14 x (25)

                              = 31.4 x 30 + 78.5

                               = 942 + 78.5 = 1020  cm²

so the radius = 5 cm

total surface area = 1020 cm²

welcome;)