Question

*r त्रिज्या व h ऊँचाई वाले बेलन का वक्रपृष्ठ होता है*

1️⃣ r²h
2️⃣ 2r²h
3️⃣ 2rh
4️⃣ 4rh
5️⃣ Option 2​

Answer 1

Answer:

4️⃣ 4rh

is your right answer

Answer 2

Answer:

Options 2

Hopefully u will satisfy with my answer..!!