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The radii of two circular faces of the frustum of a cone of height 21 cm are 3 cm and 2 cm respectively. What is the volume of the frustum of the cone in cubic cm? (Take `pi = 22/7`)
21 सेमी ऊंचाई वाले शंकु के छिन्नक के दो वृताकार फलकों की त्रिज्या क्रमशः 3 सेमी और 2 सेमी है। घन सेमी में शंकु के छिन्नक का आयतन कितना होगा ?

A

154

B

286

C

345

D

418

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The radii of two circular faces of the frustum of a cone of height 10.5 cm are 5 cm and 3 cm respectively. What is its volume in cm^3 ? ( pi=22/7 ) 10.5 सेमी ऊंचाई वाले शंकु के छिन्नक के दो वृताकार फलकों की त्रिज्या क्रमशः 5 सेमी और 3 सेमी है। घन सेंटीमीटर में इसका आयतन कितना होगा ?

The radii of two circular faces of the frustum of a cone of height 14 cm are 5 cm and 2 cm. What is its volume in cubic cm? (Take pi= 22/7 ) 14 सेमी ऊंचाई के शंकु के छिन्नक के दो वृताकार फलकों की त्रिज्या 5 सेमी और 2 सेमी है। घन सेमी में इसका आयतन कितना होगा ?

The radii of the two circular face of the frustum of a cone of height 21 cm are 5 cm and 3 cm. What is its volume in cm^3 ? ( pi=22/7 ) 21 सेमी ऊंचाई के शंकु के छिन्नक के दो वृताकार फलकों की त्रिज्या 5 सेमी और 3 सेमी है। घन सेंटीमीटर में इसका आयतन कितना होगा ?

The radii of two circular faces of frustum of a cone are 5 cm and 4 cm. If the height of the frustum is 21 cm, what is its volume in cubic cm? (Take pi =22/7 ) एक शंकु के छिन्नक के दो वृत्ताकर फलकों की त्रिज्या 5 सेमी और 4 सेमी है। यदि छिन्नक की ऊंचाई 21 सेमी है, तो घन सेमी में इसका आयतन कितना होगा ?

The radii of the circular bases of a frustum of a right circular cone are 12 cm and 3 cm and the height is 12 cm. Find the total surface area and the volume of the frustum.

The volume of a right circular cone is equal to the volume of a right circular cylinder. The height and the radius of the cylinder are 9 cm and 20 cm respectively. If the height of the cone is 108 cm, then its radius (in cm) is- लंब वृत्ताकार शंकु का आयतन लंब वृत्ताकार सिलेंडर के आयतन बराबर है। सिलेंडर की ऊँचाई और त्रिज्या क्रमशः 9 सेमी और 20 सेमी हैं। यदि शंकु की ऊचाई 108 सेमी है, तो उसकी त्रिज्या कितनी (सेमी में) होगी?

The curved surface area and volume of a cylinder are 264 square cm and 924 cubic cm, respectively. What is the ratio of its radius to height? (Take pi = 22/7 ) एक बेलन का पृष्ठीय क्षेत्रफल और आयतन क्रमशः 264 वर्ग सेमी और 924 घन सेमी है। इसकी त्रिज्या और ऊँचाई का अनुपात क्या है?

A hollow cylindrical tube 20 cm long is made of iron and its external and internal diameters are 8 cm and 6 cm respectively. the volume (in cubic cm) of iron used in making the tube is (Take pi = 22/7 ) 20 से.मी. लम्बी एक खोखली बेलनाकार ट्यूब लोहे की बनी है ओर उसका बाहरी ओर आन्तरिक व्यास क्रमशः 8 से.मी. और 6 से.मी. है। ट्यूब बनाने में प्रयुक्त लोहे का आयतन (घन से.मी. में) क्या होगा? (यह मानते हुए कि pi = 22/7 )

The volume of a right circular cylinder is 3 times the volume of a right circular cone. The radius of the cone and the cylinder are 3cm and 6cm respectively. If the height of the cylinder is 1cm, then what is the slant height of the cone? किसी लम्ब वृत्तीय बेलन का आयतन एक लम्ब वृत्तीय शंकु के आयतन से तीन गुना है | शंकु तथा बेलन की त्रिज्या क्रमशः 3 सेमी और 6 सेमी है | यदि बेलन की ऊंचाई 1 सेमी है, तो शंकु की तिर्यक ऊंचाई ज्ञात करें |

If the areas of three adjacent faces of a rectangular box which meet a corner are 12cm^2 , 15cm^2 and 20cm^2 respectively. Then the volume of the box is किसी आयताकार बकसे के तीन सन्नीकट फलक, जो एक कोने में मिलते है, का क्षेत्रफल क्रमशः 12 से.मी.^2 15 से.मी ^2 और 20 से.मी.^2 है तो बक्से का आयतन क्या होगा?

PINNACLE-MENSURATION-EXERCISE
  1. The curved surface area and volume of a cylinder are 264 square cm and...

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  2. The radius of a sphere is reduced by 40%. By what percent, will its vo...

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  3. The radii of two circular faces of the frustum of a cone of height 21 ...

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  4. A sphere of radius 4 cm is melted and recast into smaller spheres of r...

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  5. Six cubes, each of edge 2 cm, are joined end to end. What is the total...

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  6. The area of a field in the shape of a hexagon is 2400 sqrt 3 Square me...

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  7. The volume of a right circular cone is 924 cubic cm. If it.s height is...

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  8. The curved surface area and volume of a cylindrical pole are 132 squar...

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  9. The radius of the base of a cylinder is 7 cm and its curved surface ar...

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  10. A circle circumscribes a rectangle whose sides are in the ratio 4 : 3....

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  11. A wire is in the shape of a rectangle whose sides are in the ratio 7 :...

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  12. The length of a rectangular park is 20m more than its breadth. If the ...

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  13. The radii of three concentric circles are in the ratio of 4:5:7. What ...

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  14. The parallel sides of a trapezium are 20 cm and 10 cm and its non-para...

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  15. Diagonals of a rhombus are respectively 4 cm and 12 cm. Its area (in c...

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  16. In triangle ABC, the length of BC is less than twice the length of AB ...

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  17. If each side of a rectangle is increased by 22%, then its area will in...

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  18. If each side of a rectangle is decreased by 11%, then the area will de...

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  19. If the length of a rectangle is decreased by 11% and the breadth is in...

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  20. What is the area of a rhombus (in cm^2) whose side is 10 cm and the s...

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