plzzzzzzzzzzzzzzzzzzzzzzzzzzzzzzzzzzz answer this question
Attachments:
Answers
Answered by
1
hey,
GIVEN:
#Length of pipe = 77 c.m.
#Inner diameter = 4 c.m.
#Outer diameter = 4.4c.m.
NOW.,
1) Inner curved surface area
radius = inner diameter / 2 => 4 c.m./2 => 2 c.m.
curved surface area = 2 / rh => 2* 22 * 77 => 2 *22* 11 = 968 c.m.2
2). Outer curved surface area
radius = outer diameter / 2 => 4.4 c.m. / 2 => 2.2 c.m.
curved surface area = 2 / rh
= 2 * 22* 2.2* 77
__________________ => 1064.8 c.m.2
7
3) total surface area
Let outer radius be R and inner radius be r
surface area on the end = 2 / ( R+r )( R -r )
= 2 *22 * ( 2.2 + 2) ( 2.2 -2)
__
7
= 2* 22* 4.2 * 0.2
________________ = 5.28 c.m.2
. total surface area = 968 c.m.2 + 1064.8 c.m.2 +5.28 c.m.2 = 2038.08 c.m. 2
I HOPE THIS HELPED ✌️✌️✌️✌️✌️
GIVEN:
#Length of pipe = 77 c.m.
#Inner diameter = 4 c.m.
#Outer diameter = 4.4c.m.
NOW.,
1) Inner curved surface area
radius = inner diameter / 2 => 4 c.m./2 => 2 c.m.
curved surface area = 2 / rh => 2* 22 * 77 => 2 *22* 11 = 968 c.m.2
2). Outer curved surface area
radius = outer diameter / 2 => 4.4 c.m. / 2 => 2.2 c.m.
curved surface area = 2 / rh
= 2 * 22* 2.2* 77
__________________ => 1064.8 c.m.2
7
3) total surface area
Let outer radius be R and inner radius be r
surface area on the end = 2 / ( R+r )( R -r )
= 2 *22 * ( 2.2 + 2) ( 2.2 -2)
__
7
= 2* 22* 4.2 * 0.2
________________ = 5.28 c.m.2
. total surface area = 968 c.m.2 + 1064.8 c.m.2 +5.28 c.m.2 = 2038.08 c.m. 2
I HOPE THIS HELPED ✌️✌️✌️✌️✌️
mustafa639:
thanxs sister
Similar questions
Geography,
6 months ago
Math,
11 months ago
Social Sciences,
11 months ago
English,
1 year ago
English,
1 year ago