Question

find the area of corridors whose side is 3m 3m 10m 7m

Answer 1

total surface area= 2 (LB + LH + BH)
= 2×(3×10+3×7+7×10)
= 2×( 30+21 + 70)
= 2×(121)
= 242M2

Answer 2

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$<b>Answer</b>$

$<b>T.S.A of corridors = 2(LB+BH+HL)</b>$

T.S.A of corridors = 2[(3×10) + (10×7) + (7×3)]

T.S.A of corridors = 2(30 + 70 + 21)

T.S.A. of corridors = 2(121)

T.S.A of corridors = $242cm^2$

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