Math, asked by kmoun7, 10 months ago

एक ठोस लोहे के घनाभ की विमाएँ 4-4 मी. x 2-6 मी. x 1.0 मी. हैं । इसे पिघलाकर
30 सेमी आंतरिक त्रिज्या और 5 सेमी मोटाई का एक खोखला बेलनाकार पाइप बनाया गया
है । पाइप की लंबाई ज्ञात कीजिए ।
The dimensions of a solid iron cuboid are 4-4 m x 2-6 m x 1-0 m. It is
melted and recast into a hollow cylindrical pipe of 30 cm inner radius and
thickness 5 cm. Find the length of the pipe.​

Answers

Answered by ajuarora536
0

Answer:

29.71 metre

Step-by-step explanation:

Volume of cuboid=l*b*h

=4.4*2.6*1.0

=11.44m³

radius=30cm

thickness=5cm

total radius=35cm

=0.35m

volume of cuboid=volume of cylinder

11.44=πr²h

11.44=22*0.35*0.35*h

(11.44*7)/22*0.35*0.35=h

80.08/2.695=h

29.71m=h

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