Home
Class 14
MATHS
A right circular solid cone of radius 3....

A right circular solid cone of radius 3.2 cm and height 7.2 cm is melted and recast into a right circular cylinder of height 9.6 cm. What is the diameter of the base of the cylinder ?
3.2 सेमी त्रिज्या और 7.2 सेमी ऊंचाई वाले एक लम्ब वृत्तीय ठोस शंकु को पिघलाया जाता है तथा 9.6 सेमी ऊँचाई वाला एक लम्ब वृत्तीय बेलन बनाया जाता है | बेलन के आधार का व्यास कितना है ?

A

4.2 cm

B

3.5 cm

C

4.5 cm

D

3.2 cm

Text Solution

Verified by Experts

The correct Answer is:
D
Promotional Banner

Similar Questions

Explore conceptually related problems

A metallic cylinder of radius 8 cm and height 2 cm is melted and converted into a right circular cone of height 6 cm . The radius of the base of this cone is

A solid metallic sphere of radius 6.3 cm is melted and recast into a right circular cone of height 25.2 cm. What is the ratio of the diameter of the base to the height of the cone ?

A solid metallic hemisphere of radius 8 cm is melted and recasted into a right circular cone of base radius 6 cm. Determine the height of the cone.

A right circular cone is 3.6 cm high and radius of its base is 1.6 cm. It is melted and recast into a right circular cone with radius of its base as 1.2 cm. Find its height.

A right circular cone is 3.6cm high and radius of its base is 1.6cm .It is melted and recast into a right circular cone with radius of its base as 1.2cm. Find its height.

Twelve solid hemispheres of the same size are melted and recast in a right circular cylinder of diameter 7 cm and height 28 cm. What is the radius of the hemispheres?

The number of coins, each of radius 0.75 cm and thickness 0.2 cm, to be melted to make a right circular cylinder of height 8 cm and radius 3 cm, is 0.75 सेमी त्रिज्या तथा 0.2 सेमी मोटाई वाले सिक्कों, जिन्हें पिघलाकर 3 सेमी त्रिज्या तथा 8 सेमी ऊँचाई वाला एक लम्बवृत्तीय बेलन बनाया जाता है, तो सिक्के की संख्या होगी?

A cylinder with base radius 8 cm and height 2 cm is melted to form a cone of height 6 cm. The radius of the cone will be:- 8 सेमी आधार त्रिज्या और 2 सेमी ऊँचाई वाले सिलेडर को 6 सेमी ऊंचा शंकु बनाने के लिए गलाया जाता है। शंकु की त्रिज्या क्या होगी?

A solid sphere of radius 9 cm is melted to form a sphere of radius 6 cm and a right circular cylinder of same radius. The height of the cylinder so formed is

The radii of the internal and external surfaces of a metallic spherical shell are 3 cm and 5 cm respectively. It is melted and recast into a solid right circular cylinder of height 10 2/3 cm. Find the diameter of the base of the cylinder.