Find the total surface of a hollow cylinder open at both ends, if its length is 28 cm, external radius is 7 cm and thickness is 1 cm.
Answers
Answered by
1
Answer:176cm^2
Step-by-step explanation:
Answered by
1
Answer:
224
Step-by-step explanation:
- 7+1=8
- 8✖️28=224 it is answer
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