Question

The length of a cinema hall is 20 m, and its width is 16 m. The sum of the areas of its floor and flat roof is equal to the surface area of its four walls. Find the height and the volume of the hall.

Answer 1

Answer:

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Step-by-step explanation:

l=20m

b=16m

area of floor = 20×16=320m

area of roof = 20×16=320m

area of four walls = 320+320=640m

also, 2(20h)+2(16h)=640

2(20h+16h)=640

h(20+16)=640/2=320

h=320/236=160/118=80/59m

h=80/59m

HOPE IT WILL HELP YOU

Answer 2

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