alleryએક ઓરડો 10 m લાંબો, 8 m પહોળો અને 3 m ઊંચો છે. તેની ચાર દીવાલોનું કુલ ક્ષેત્રફળ કેટલું છે?
A240 m²
B108 m²
C216 m²
D144 m²
Answer & Solution
Correct answer: B. 108 m²
ચાર દીવાલોનું ક્ષેત્રફળ 2(l + b)h = 2 x 18 x 3 = 108 ચોરસ મીટર થાય છે.
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