SOLUTION: Please help with geometry
Ellis is painting wooden fenceposts before putting them in his yard. They are each 5 feet tall and have a diameter of 1 foot. There are 10 fenceposts
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Ellis is painting wooden fenceposts before putting them in his yard. They are each 5 feet tall and have a diameter of 1 foot. There are 10 fenceposts
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Ellis is painting wooden fenceposts before putting them in his yard. They are each 5 feet tall and have a diameter of 1 foot. There are 10 fenceposts in all. How much paint will Ellis need to paint all the surfaces of the 10 fenceposts? Use 3.14 for π, and round your answer to the nearest hundredth. Found 2 solutions by mananth, ikleyn:Answer by mananth(16949) (Show Source):
You can put this solution on YOUR website! height of fence post 5 ft
diameter of fence post = 1 ft radius = 0.5 ft
Total surface of the fence post = 2pir(r+h)
= 2* 3.14 *(5+0.5)
= 6.28 * 5.5
= 34.54 ft^2 / post
For 10
345.4 ft^2
How much paint /ft^2
You can put this solution on YOUR website! .
Ellis is painting wooden fenceposts before putting them in his yard. They are each 5 feet tall and have
a diameter of 1 foot. There are 10 fenceposts in all. How much paint will Ellis need to paint all the surfaces
of the 10 fenceposts? Use 3.14 for π, and round your answer to the nearest hundredth.
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Calculations in the post by @mananth are elementary incorrect.
I came to bring a correct solution.
height of fence post 5 ft
diameter of fence post = 1 ft radius = 0.5 ft
Total surface of the fence post =
= 2* 3.14 * 0.5 * (5+0.5)
= 6.28 * 0.5 * 5.5
= 17.27 ft^2 / post
For 10 posts
172.7 ft^2
