Posted by **manny** on Saturday, August 18, 2007 at 10:57am.

can you guys check if this is correct?

____________________________________

"the cross- sectional area of a circular duct is 226.865 square inches. what would be the diameter of the duct"

______________________________________

A= pi(r^2) = 226.865 in^2

r= sqrt [ 226.865/ pi ]

r = 8.497845

d = 2r

= 17

the diameter is 17 inches

Right. I get 17 inches also.

ok thanks

## Answer This Question

## Related Questions

- algebra - A furnace duct forks into 2 ducts. Flow coming in is 2300cfm. If flow ...
- physics - A cylindrical air duct in an air conditioning system has a length of 3...
- physics - A cylindrical air duct in an air conditioning system has a length of 3...
- physics help - A cylindrical air duct in an air conditioning system has a length...
- algebra - A heating duct has a rectangular cross section whose area is 40(inches...
- math - what is 226.08 rounded to the nearest tenth? I'm stuck I believe it would...
- Physics - A 19cm radius air duct is used to replenish the air of a room 9.2m x 6...
- math - the volume of a triangular prism is 226.08 cubic inches. if the area of ...
- math - a hollow shaft has a cross sectional area of 8.68 cm square if its inside...
- physics - I need to make an egg protection device using only sipping straws and ...

More Related Questions