A square room is 12 m long and 5 m high. (i) Find the area of its floor and ceiling. (ii) Find the area of its 4 walls. (iii) Find the area of the room including floor and ceiling.
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Answer:
Step-by-step explanation:
we know sides in a square is equal
ceiling length = 5m
area = side x side
5x5
=) 25msquare
floor = 12m
area = 12 x 12
= 144m^2
now for 4 walls
let a be side = 5m
lsa = 4a^2
4(5)^2
4 x 25
= 100 m^2
tsa
tsa = lsa + 2(a^2)
100+ 2 x 144
388 m^3
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