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
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
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
r² = 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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