Question

Find the total surface area of cylinder whose radius is 14 m and height 15 m.​

Answer 1

Answer:

Area of cylinder = πr²h

=

$\frac{22}{7} \times 14 \times 14 \times 15$

$22 \times 14 \times 2 \times 15$

$= 9240$

Answer is 9240 cm²

Answer 2

✺Question:-

• Find the total surface area of cylinder whose radius is 14 m and height 15 m.

Given:-

• Radius of circle is 14 m
• Height if circle is 15 m

To find:-

• Total surface area of cylinder.

Solution:-

$\boxed{ \red{ \sf \: Total \: surface \: area \: of \: cylinder=2πr(r+h)}}$

$= 2 \times \frac{22}{7} \times \frac{14}{2} (14 + 15)$

$\: \: \: \: \longrightarrow \: {2} \: \times \frac{ \cancel{^{11} 22}}{ \cancel{7}} \times \frac{ \cancel{ ^{2} 14}}{ \cancel{2}} \times 29$

$\longrightarrow \: 2 \times 11 \times 2 \times 29$

$= 1276 \: {m}^{2}$

Therefore the Total surface area of cylinder is 1276 cm².

Step-by-step explanation:

Learn more formulas:-

• T.S.A of Cuboid=2(lb + bh + lh)
• T.S.ACube=6a²
• T.S.A Right Prism =LSA + 2 (area of one end)
• T.S.A Right Circular Cylinder=2πr(r + h)
• T.S.A Right Pyramid=LSA + Area of Base
• T.S.A Right Circular Cone=πr(l + r)
• T.S.A Solid Sphere=πr²
• T.S.A Hemisphere=3πr²