Total area of four wall is 252 m2 if height and length of room are in ratio 1:5 and the height and breadth are in ratio 1 :2 . find area of floor
Answers
Answer:
answer is 126m^2.
Step-by-step explanation:
area of 4walls= 252m^2
area of wall= 252/4=63m^2
h:l= 1:5
l=5h
area of wall= l x h
l x h = 63
5h x h = 63
5h^2 = 63
h = √(63)/5 m^2
l = √(63) m^2
h:b = 1:2
b = 2√(63) m^2
area of the floor= l x b
= √(63) × 2√(63)
= 126m^2
Therefore the area of the floor is 126m^2.
Answer:
The area of the floor is 179.86 m².
Step-by-step explanation:
Let the height, breadth and length in the ratio 1:2:5 be x, 2x and 5x respectively
Given, Lateral Surface Area (LSA) = 252m²
LSA = 2(L+B)H
252 = 2(5x+2x)x = 2 × 7x × x = 14x²
=> 14x² = 252 => x² = 252/14 = 18
=> x = 3 root over 2
Length = 5x = 21.21
Breadth = 2x = 8.48
Area = L × B = 21.21 × 8.48 = 179.86.
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