Question
A cylindrical oil tank has a radius of 5 m and a total
surface area of 628 m², what would be its curved surface area? (round off to the second decimal place)Solution
Given Total Surface Area (TSA) = 628 m2 Given radius (r) = 5 m TSA = 2πr(r + h) 628 = 2π × 5 × (5 + h) ⇒ 628 = 10π × (5 + h) ⇒ 628 = 10 × 22/7 × (5 + h) ⇒ 19.98 = 5 + h ⇒ h = 14.98 m Now, CSA = 2πrh CSA = 2π × 5 × 14.98 ⇒ CSA = 10π × 15 ⇒ CSA = 10 × 22/7 × 14.98 ⇒ CSA = 470.8 m2
What was India’s rank in the World Happiness Report 2026?
What is the new annual honorarium for BLO Supervisors in Bihar after the recent revision?
Which bank was penalized for routing unauthorized entries through internal or office accounts?
In terms of metrology ,India was ranked _____ , in the world according to the Global Quality Infrastructure Index (GQII) 2021.
Where will the FIDE World Cup 2025 be hosted?
Recently The US and Which Country signed a join deal to deny Iran Nuclear Arms?
Which of the following state government recently recast its start-up policy to support new business ideas and nurture unicorns?
- The India-Kyrgyzstan Joint Special Forces Exercise KHANJAR-XII is being held in which country in 2025?
Which of the following entities are the direct members of the Bihar Rajya Jeevika Nidhi Saakh Sahkari Sangh Limited?
The fourth Buddhist Council was convened under the patronage of which ruler?
Relevant for Exams:
