MyQuestionIcon

20

You visited us 20 times! Enjoying our articles? Unlock Full Access!

Surface Area of Combined Figures

The internal ...

Question

The internal and external diameters of a hollow hemispherical vessel are 21 cm and 25.2 cm respectively. The cost of painting 1 cm² of the surface is 10 paise. Find the total cost to paint the vessel all over.

Open in App

Solution

We are given the following hemi hollow sphere

The internal and external radii of the hollow hemispherical vessel arecm and cm respectively. Therefore, the total surface area of the hollow hemispherical vessel is

The cost of painting 1 square cm is 10 paise. Therefore the total cost of painting the vessel all over is

Hence total cost of painting is rupees

Suggest Corrections

thumbs-up

3

Similar questions

Q. The internal and external diameters of a hollow spherical vessel are

21 c m

25.2 c m

respectively. The cost of painting

1 {c m}^{2}

of the surface is

1.50

paise. Find the total cost to paint the vessel all over.

Q. The internal and external diameters of a hollow hemispherical vessel are

24 c m

25 c m

, respectively. The cost to paint

1 {c m}^{2}

R s . 0.05

. Find the total cost to paint the vessel all over. (use

π = \frac{22}{7}

)

Q. The internal and external diameters of a hollow hemispherical vessel is

20 c m

28 c m

respectively. Find the cost of painting the vessel all over at

14

{c m}^{2}

Q. The internal and external diameter of a hollow hemi-spherical vessel is

24 c m

25 c m

respectively. The cost of paint one sq.cm of the surface is paise. Find the total cost to paint the vessel all over.

Q. The internal and external diameter of a hemispherical bowl are 12 cm and 10 cm respectively. The cost of painting the vessel all over @ Rs 0.07/

c m^{2}

View More

Join BYJU'S Learning Program

similar_icon

Related Videos

lock

Combination of Solids

MATHEMATICS

Watch in App

explore_more_icon

Explore more

Surface Area of Combined Figures

Standard X Mathematics

Join BYJU'S Learning Program

CrossIcon