The diameter of a roller is …
CBSE, JEE, NEET, CUET
Question Bank, Mock Tests, Exam Papers
NCERT Solutions, Sample Papers, Notes, Videos
Related Questions
Posted by Vanshika Seti 2 hours ago
- 0 answers
Posted by Kanishkaa Kanagaraj 1 day, 2 hours ago
- 0 answers
Posted by Mohammad Ramjan 2 hours ago
- 1 answers
Posted by Piyush Sharma 3 days, 23 hours ago
- 0 answers
Posted by Kishan Kishan 2 days, 21 hours ago
- 2 answers
Posted by Akshara Chintamani 3 days ago
- 0 answers
myCBSEguide
Trusted by 1 Crore+ Students
Test Generator
Create papers online. It's FREE.
CUET Mock Tests
75,000+ questions to practice only on myCBSEguide app
Sia ? 4 years, 9 months ago
2r = 84 cm, r = 42 cm, h = 120 cm
⇒ r = 42 cm., h = 120 cm
∴ Area of the playground leveled in taking 1 complete revolution.
= {tex}2\pi rh{/tex}
= {tex}2\times{22\over7}\times42\times120{/tex}= 31680 cm2
∴ Area of the playground = 31680 × 500
= 15840000 cm2
={tex}15840000\over100\times100{/tex} m2
= 1584 m2
∴ the area of the playground is 1584 m2
0Thank You