natalieruth930 natalieruth930

13-02-2021
Mathematics

contestada

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

Respuesta :

vagoyal6 vagoyal6

13-02-2021

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

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