एक भवन के 10 बेलनाकार उस स्तंभों को रंगना है ।यदि प्रत्येक स्तंभ का व्यास 50 सेमी तथा ऊंचाई 4 मीटर हो तो 50 पैसे प्रति वर्ग मीटर की दर से रंगवाने पर व्यास ज्ञात कीजिए।
Answers
Answered by
0
Answer:
Bhai question dhang s likha kr, Diameter (Vyas) 50 cm pahle bola to fir vaps konsa diameter find out krna h?
Mne apne hisab s solve kiya h, glt kuch nhi kiya h pr question alg pucha h to obviously answer bhi alg hi hoga.
Step-by-step explanation:
Diameter d = 50cm
Radius r = 50/2 = 25cm = 1/4m
Height h = 4m
Area of 1 cylinder = π(r^2)h = (22/7) × (1/4)^2 × 4 = (22/7) × (1/16) × 4 = 88/112m^2 = 11/14m^2
Area of 10 Cylinders = (11/14) × 10 = 110/14m^2 = 7.85m^2
If 50 paise per square meter then total paise = 7.85 × 50 = 392.5 paise or 3.925 rupees
Similar questions