A concrete forming "paper" tube is used to void a column as shown. The walls must be 3.00 in. thick, and the outside column must be 37.0 in. in radius. The column is 20.0 ft tall. 37.0 in. 20.0 ft 3.00 in. Paper tube

Elementary Geometry For College Students, 7e
7th Edition
ISBN:9781337614085
Author:Alexander, Daniel C.; Koeberlein, Geralyn M.
Publisher:Alexander, Daniel C.; Koeberlein, Geralyn M.
Chapter9: Surfaces And Solids
Section9.3: Cylinders And Cones
Problem 46E
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A concrete forming "paper" tube is used to void a column as shown. The walls must
be 3.00 in. thick, and the outside column must be 37.0 in. in radius. The column
is 20.0 ft tall.
37.0 in.
20.0 ft
3.00 in.
Paper
tube
1. Find the diameter of the paper tube.
2. If concrete weighs 148 lb/ft°, what would you put on the drawing for the
final column weight?
3. At 186 ft2 /gal per coat of paint, how much paint would you put in the bill of
materials as required for one coat per each column exterior surface.
4. If the column is not voided and poured solid, how much would it weigh
1
Transcribed Image Text:A concrete forming "paper" tube is used to void a column as shown. The walls must be 3.00 in. thick, and the outside column must be 37.0 in. in radius. The column is 20.0 ft tall. 37.0 in. 20.0 ft 3.00 in. Paper tube 1. Find the diameter of the paper tube. 2. If concrete weighs 148 lb/ft°, what would you put on the drawing for the final column weight? 3. At 186 ft2 /gal per coat of paint, how much paint would you put in the bill of materials as required for one coat per each column exterior surface. 4. If the column is not voided and poured solid, how much would it weigh 1
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