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May 19th, 2019, 01:27 PM   #1
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All surfaces

A room measuring 3.5m by 4.2m by 2.4m high is to be painted. All surfaces except the floor are to be painted. How many square meters of surface are to be painted, to one decimal place?

please help?
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May 19th, 2019, 01:43 PM   #2
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really?

2 walls are (3.5m x 2.4m)

2 walls are (4.2m x 2.4m)

the ceiling is (3.5m x 4.2m)

multiply... add... you can do it!
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May 19th, 2019, 09:56 PM   #3
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You mean like this:

(3.5m × 2.4m) + (4.2m × 2.4m) + (3.5m × 4.2m) = ?

Last edited by skipjack; May 20th, 2019 at 12:12 AM.
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May 19th, 2019, 10:08 PM   #4
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Quote:
Originally Posted by yorkmanz View Post
You mean like this:

(3.5m × 2.4m) + (4.2m × 2.4m) + (3.5m × 4.2m) = ?
You left out factors of two because of 2 walls, but yes, like that.

Last edited by skipjack; May 20th, 2019 at 12:13 AM.
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May 20th, 2019, 10:11 PM   #5
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you mean like that

2(3.5)(2.4) + 2(4.2)(2.4) + (3.5)(4.2) = 51.66 ?
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