Start learning 50% faster. Sign in now
Curved surface area of the cylinder = 2πrh From I. Area of the base is 154 cm² ∴πr² = 154 = 22/7× r² = 154 r² = 7 × 7 r = 7 cm But we can’t find the height of the cylinder. Hence I alone is not sufficient. From II. Volume of the cylinder = πr²h = 1540 So, there are two variables r and h. Hence II alone is not sufficient. From I and II. Volume of the cylinder = πr²h. = 22/7× 7 × 7 × h = 1540 ∴ h = 10 cm ∴ Curved surface area of the cylinder = 2πrh = 2 ×22/7× 7 × 10 = 440 cm² Thus, both the statements together are required to answer the question.
Which Indian freedom fighter served as a soldier in the British Army during the Anglo-Boer War in South Africa?
Who commanded the Gurkha regiment to fire upon the crowd at Jallianwala Bagh in 1919?
Consider the following statements with reference to the socio religious uprising:
1. The Wahabi Movement was islamic reformist movement that al...
On what date did the Bangladesh Liberation War conclude?
In the context of Indian history, what was the Dandi March
Consider the following statements about the Abhinav Bharat Society:
1. It was a secret society founded by Vinayak Damodar Savarkar and his bro...
Who initiated the Radhaswami Movement?
Consider the following statements with reference to British officer Lord Canning:
1. He was the first governor general and the first viceroy of...
Which regiment did Mangal Pandey, a key figure in sparking the Indian Rebellion of 1857, serve in?
In which year was the Third Battle of Panipat fought?