Question

Question 6 out of 40
The sum of the radius and height of a cylinder is 18 metre. The total surface area of the cylinder
is 792 sq. metre. what is the volume of the cylinder ? (in cubic metre)द सम ऑफ द रेडियस एंड हाइट ऑफ़ ए सिलेंडर इस 18 मीटर द टोटल सरफेस एरिया ऑफ सिलेंडर इस 719 स्क्वायर मीटर व्हाट इज द वॉल्यूम ऑफ सिलेंडर ​

Answer 1

Answer:

1694 cubic metre

Step-by-step explanation:

r + h = 18 metre ........(i)

Total surface area of cylinder

= 2 π r (h + r)

∴ 2 π r (h + r) = 792

=> 2 × 227 ×r×18=792

=> r = 792×72×22×18 = 7 metre

∴ h = 18 - 7 = 11 metre

∴ Volume of cylinder = πr2h

= 227×7×7×11

= 1694 cu.metre