Math, asked by amgothdevla5, 11 hours ago

ure The volume of a cylinder is 308 cm. Its height is 8 cm. Find and total surface area. 15mm x 75 was​

Answers

Answered by Anish11026
0

Answer:

253m²

Step-by-step explanation:

The volume of the cylinder is given to us as 308 sq meter

7

22

×r

2

×8=308

⇒r

2

=

22×8

308×7

=12.25

∴r=3.50 m

The lateral surface area of a cylinder is given by the formula =2πrh

=2×

7

22

×3.5×8

=176m

2

The total surface area of the cylinder = Lateral Surface Area + 2πr

2

=176+2

7

22

×(3.5)

2

=176+77

=253m

2

Answered by vikkiain
0

Answer:

535.565cm²

Step-by-step explanation:

Volume = 308cm³

height = 8cm

let, Radius = r

Now,

V = πr²h/3

308 = (22/7)r²×8/3

= 308×7×3/22×8 = 36.75cm²

r = 6.06cm

Now,

total surface area = 2πrh+2πr²

= 2πr(h+r) = 2×22/7×6.06×(8+6.06)cm²

= 535.565cm².

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