Math, asked by thaanumalianGK, 8 months ago

25cm plastic pipe has external and internal dimensions 10 cm and 8 cm find the volume

Answers

Answered by rishu6845

Answer:

2826 cm³

Step-by-step explanation:

Given---> Length of plastic pipe = 25cm

External radius ( R ) = 10 cm

Internal radius ( r ) = 8Cm

To find ---> Volume of pipe

Solution---> R = 10cm , r = 8cm , l = 25cm

Volume of pipe = π ( R² - r² ) l

= π { ( 10 )² - ( 8 )² } × 25

= π ( 100 - 64 ) × 25

= π ( 36 ) × 25

= 3.14 × 36 × 25

= 3.14 × 900

= 2826 cm³

Additional information--->

(1)Volume of solid cylinder = π r² h

(2) Curved surface area of solid cylinder = 2πrh

(3) Total surface area of solid cylinder

= 2πr ( r + h )

(4) area of base of solid cylinder = πr²

(5) Total surface area of hollow cylinder

= 2πRh + 2πrh

Where R is external radius and r is internal radius.

Answered by Aɾꜱɦ

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