According to the question, CSA/TSA = 2/5 ⇒ [2πRh]/[2πR(R + h)] = 2/5 ⇒ h/(R + h) = 2/5 ⇒ 5h = 2R + 2h ⇒ h = (2/3)R .......(1) The volume of a cylinder and the volume of a solid hemisphere are equal. ⇒ πR2h = (2/3)πr3 ⇒ R2 × (2/3)R = (2/3) × (21)3 ⇒ R3 = (21)3 ⇒ R = 21 सेमी ∴ The radius of its base (in cm) is 21 cm.
Which of the following is primarily an economic union of the Post-Soviet states located in Eastern Europe, Western Asia and Central Asia?
What is the theme of National Dengue Day 2024?
The Lucknow Pact was signed in ______ by Congress and the Muslim League to work in alliance for representative government.
In Which year did the Ministry of Health and Family Welfare of India launch the Weekly Iron and Folic Acid Supplementation (WIFS) program to meet the ch...
Chitrakoot district is situated in which of the following state ?
What is the global rank of Hindon Airbase among the world's airbases?
Which of the following states won the ‘Best Tableau’ award at the 71st Republic Day parade in January 2020?
According to recent RBI census data for FY 2023, which country emerged as the largest source of foreign direct investment (FDI) in India?
In MS-Word 2016, the ‘Aa' feature within the Font group of the Home tab represents the ________ option.
Consider the following statements about Bharat Ratna.
(1) Nanaji Deshmukh received this award in 2019.
(2) Nanaji Deshmukh received t...
