Q. 294.4( 5 Votes )

The radii of circ

Answer :

First, we will draw the bucket as per the given data,



Given the height of the bucket, h = 24cm


Radius of the upper end, r1 = 15cm


Radius of the lower end, r2 = 5cm


So, the slant height, l of the bucket can be calculated using the below formula



Now substituting the corresponding values, we get






l = 26cm


Now we know the curved surface area of a frustum is


= π(r1 + r2)l


Substituting the corresponding values, we get


= π (15 + 5) (26)


= π (20) (26)


= π (520)


= 3.14 × 520


= 1632.8


≈ 1633cm2


Hence the curved surface area of the bucket is 1633cm2.

Rate this question :

How useful is this solution?
We strive to provide quality solutions. Please rate us to serve you better.
Try our Mini CourseMaster Important Topics in 7 DaysLearn from IITians, NITians, Doctors & Academic Experts
Dedicated counsellor for each student
24X7 Doubt Resolution
Daily Report Card
Detailed Performance Evaluation
caricature
view all courses