alleryஓர் அறை 10 m நீளமும், 8 m அகலமும், 3 m உயரமும் கொண்டது. அதன் நான்கு சுவர்களின் மொத்தப் பரப்பு என்ன?
A240 m²
B108 m²
C216 m²
D144 m²
Answer & Solution
Correct answer: B. 108 m²
நான்கு சுவர்களின் பரப்பு 2(l + b)h = 2 x 18 x 3 = 108 சதுர மீட்டர்கள் ஆகும்.
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