A room is 10m long, 7m wide and 8 metre high. Its wall and roof are to be whitewashed. Find the total area for whitewashing. please answer fast urgent.
Answers
Answered by
1
Answer:
T.A=356m²
Step-by-step explanation:
Height=10m
Length=7m
Width=8m
Area of 4 Walls = 2*Height(Length+Width)
→ 2*10(7+8) m²
→ 300m²
Area of roof = Length*Width
→ 7*8 m²
→ 56m²
Total area → (300+56)m²
→ 356m²
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Answered by
1
Answer:
342m^2
Step-by-step explanation:
l=10m
b=7m
h=8m
formulae=2 x (bh+hl)+lb
= 2 x (7x8+8x10)+10x7
=2x(56+80)+70
=2x136+70
=342m^2
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