Question
The curved surface area of a right cylinder is 3696
cm³. Its height is three times its radius. What is the capacity (in litres) of the cylinder? (Take π = 22/7)Solution
Let the radius of the cylinder be ‘r’ and the height of the cylinder be ‘h’. Curved surface area of cylinder = 2πrh ⇒ 2πrh = 3696 ⇒ 2πr × 3r = 3696 (h = 3r) ⇒ r^2 = (3696 × 7)/(22 × 6) ⇒ r^2 = 196 ⇒ r = 14 cm ⇒ h = 3r = 3 × 14 = 42 cm Volume of cylinder = πr^2h ⇒ (22/7) × 14 × 14 × 42 ⇒ 25872 cm We know, 1 cm = 0.001 litre ⇒ 25872 × 0.001 ⇒ 25.872 litres
_______ Indian Female Tennis Player has announced her retirement from professional tennis?
Odia was given the status of a classical language in the year?
Who was the founder of the Arya Samaj?
Which Directive Principle of State Policy is related to the Government of India's Ayushman Bharat Yojana?
Who coined the term "Green Shoots" to describe signs of economic recovery?
Which is the longest national highway in India?
What type of organism serves as the primary consumer in a lake ecosystem?
The National Education Day is observed on?
What is the official mascot of 44th Chess Olympiad to be held in Chennai, Tamil Nadu?
In the recent Commonwealth Games held in Birmingham, Tulika Maan bagged the silver medal in the event for____ by defeating Sarah Adlington?
