please give me the right answer
Attachments:
Answers
Answered by
2
Answer:
A hemispherical boud made of brass has inngur diameter 10.5em. Find the cast of tim-planting it on the inside at the rate of £32 per 100 cm²
Step-by-step explanation:
here in this example in place of ₹32 is ₹16
therefore u can take there 32 and try to solve
Attachments:
Answered by
2
Diameter=10.5cm
Radius=diameter/2
r=10.5/2=5.25cm
Curved surface area of hemisphere (C.S.A)=2pie r^2= 2x22/7 x5.25 x5.25 =
1212.75/7=173.25 cm2
Rate for plating 100cm2= 16rs
Rate for plating 173.25 cm2=173.25/100x16=27.72 rs
Radius=diameter/2
r=10.5/2=5.25cm
Curved surface area of hemisphere (C.S.A)=2pie r^2= 2x22/7 x5.25 x5.25 =
1212.75/7=173.25 cm2
Rate for plating 100cm2= 16rs
Rate for plating 173.25 cm2=173.25/100x16=27.72 rs
Similar questions