Question

The radii of the ends of a bucket 16 cm high are 20 cm and 8 cm. Find the curved surface area of the bucket.

Answer 1

Answer:

The bucket will be in the form of a frustum, therefore:

Answer 2

The curved surface area of bucket is 1760 sq.cm.

Step-by-step explanation:

We are given that The radii of the ends of a bucket 16 cm high are 20 cm and 8 cm

So, h = 16 cm

R = 20 cm

r = 8 cm

Curved surface area of bucket = $\pi (R+r)\sqrt{(R-r)^2+h^2}$

So, curved surface area of given bucket = $\frac{22}{7}(20+8)\sqrt{(20-8)^2+16^2}=1760 cm^2$

Hence The curved surface area of bucket is 1760 sq.cm.

#Learn more:

The radii of circular of a frustum of cone are 14cm and 8cm . If the height of frustum is 8cm . Find slant height of frustum ,total surface area of frustum .volume of frustum

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