answer urgent
I will mark as brainlist only formula compose in hint that is area of two rims.
Share
answer urgent
I will mark as brainlist only formula compose in hint that is area of two rims.
Sign Up to our social questions and Answers Engine to ask questions, answer people’s questions, and connect with other people.
Login to our social questions & Answers Engine to ask questions answer people’s questions & connect with other people.
Thickness of the pipe = 0.7cm
inner radius of the pipe (r )= 3.5cm
External radius of the pipe (R ) = (3.5+ 0.7 )cmor,4.2cm
length=5dm or,50cm
We know,
Total surface area of pipe = 2π (r+ R ) ( h+ R - r)
or, Total surface area of pipe= 2×22/7(3.5+4.2)(50+4.2-3.5)
= 44/7 × 7.7 × 50.7
=2453.88cm^2
So the answer should be 2453.88cm^2
Hope it helps.