please help me by solving the question
Attachments:
Answers
Answered by
3
Hello Mate!
Since diameter = 2 × radius
14 cm = 2 × radius
7 cm = radius
Volume of mud taken out = volume of cylinder
Volume of cylinder = πr²h
Volume of mud taken out = 22/7 × 7² × 15
= 2310 m³
Now, area of embankment = π( R² - r² )
= 22/7 × ( 14² - 7² )
= 22/7 × ( 14 - 7 )( 14 + 7 )
= 22/7 × 7 × 21
= 462 m²
Volume = area × height
2310 m³ = 462 m² × h
5 m = height
Hence height of embankment is 5 m.
Have great future ahead!
Since diameter = 2 × radius
14 cm = 2 × radius
7 cm = radius
Volume of mud taken out = volume of cylinder
Volume of cylinder = πr²h
Volume of mud taken out = 22/7 × 7² × 15
= 2310 m³
Now, area of embankment = π( R² - r² )
= 22/7 × ( 14² - 7² )
= 22/7 × ( 14 - 7 )( 14 + 7 )
= 22/7 × 7 × 21
= 462 m²
Volume = area × height
2310 m³ = 462 m² × h
5 m = height
Hence height of embankment is 5 m.
Have great future ahead!
Attachments:
Similar questions