Find the surface area of a cylinder with radius 5 cm and height 3 cm. Use 3.14 for it. (a) 125.6 cm (b) 150.72 cm (c) 172.7 cm (d) 251.2 cm (Hint: Substitute the value of it in the end k 2x x cm
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Find the surface area of a cylinder with radius 5 cm and height 3 cm. Use 3.14 for it. (a) 125.6 cm (b)
Step-by-step explanation:
The area, originally inhabited by the Tongva (or Gabrielino) Indians (its name derives from the Indian word kukamonga, meaning “sandy place”), was explored in 1769 by a Spanish expedition led by Gaspar de Portolá. ...
Surface area of cylinder is 251.42 sq.cm
Given that
Radius of cylinder is 5cm
Height is 3cm
To find
Surface area of cylinder
Solution
As we know that
Let
r as radius of cylinder
h as height of cylinder
s as surface area of cylinder
[tex]surface \: area \: of \: cylinder = 2\pi \times r \times h + 2 \times \pi \times {r}^{2} [/tex]
[tex]s = 2 \times \pi \times 5 \times 3 + 2 \times \pi \times {5}^{2} [/tex]
by multiplication
[tex]s = 30\pi + 50\pi[/tex]
[tex]s = (30 + 50)\pi[/tex]
[tex]\pi = \frac{22}{7} [/tex]
now
[tex]s = 80 \times \frac{22}{7} [/tex]
by multiplication we get
[tex]s = 251.42 {cm}^{2} [/tex]
Hence surface area of cylinder is 251.42 cm sq.