Find the total surface area of a closed cylindrical drum if its diameter is 50 cm and height is 45 cm. (π = 3.14)
Answers
Answered by
95
total surface area=2πr(h+r)
=2×3.14×25(45+25)
=6.28×25×70
=10,990
plzz make me a brainlist
=2×3.14×25(45+25)
=6.28×25×70
=10,990
plzz make me a brainlist
Answered by
48
Solution :
Dimensions of the closed Cylindrical
drum :
Diameter ( d ) = 50 cm
Radius ( r ) = d/2 = 50/2 = 25 cm
Height ( h ) = 45 cm
π = 3.14
Total Surface Area of the drum = A
A = 2πr( h + r )
= 2 × 3.14 × 25 ( 45 + 25 )
= 2 × 3.14 × 25 × 70
= 10990 cm²
Therefore ,
Total Surface Area of the closed
Cylindrical Drum = A = 10990 cm²
••••
Dimensions of the closed Cylindrical
drum :
Diameter ( d ) = 50 cm
Radius ( r ) = d/2 = 50/2 = 25 cm
Height ( h ) = 45 cm
π = 3.14
Total Surface Area of the drum = A
A = 2πr( h + r )
= 2 × 3.14 × 25 ( 45 + 25 )
= 2 × 3.14 × 25 × 70
= 10990 cm²
Therefore ,
Total Surface Area of the closed
Cylindrical Drum = A = 10990 cm²
••••
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