a school hall measures 10m long,7m wide and 4m high.All it’s insideswalls and ceiling are painted , calculate the total surface area​

Question

a school hall measures 10m long,7m wide and 4m high.All it’s insideswalls and ceiling are painted ,
calculate the total surface area​

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Latifah 3 years 2021-09-03T23:54:40+00:00 1 Answers 9 views 0

Answers ( )

  1. ngochoa
    0
    2021-09-03T23:56:26+00:00
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    Answer:

    304 m²

    Step-by-step explanation:

    l = 10 m

    b = 7 m

    h = 4 m

    TSA = 2 (lb + bh + hl)

           = 2 (10 * 7 + 7 * 4 + 4 * 10)

           = 2 (70 + 42 + 40)

           = 2 * 152

           = 304 m²

    Hope it helps 🙂

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