alleryஒரு திறந்த மேல் கனசதுரப் பெட்டி 8 × 5 × 3 செமீ; அதன் வெளிப்பகுதி? தடிமன் புறக்கணிக்கவும்.
A158 cm²
B120 cm²
C94 cm²
D118 cm²
Answer & Solution
Correct answer: D. 118 cm²
அடிப்பகுதி மற்றும் நான்கு பக்கங்களின் மொத்த பரப்பளவு 8 × 5 + 2 × 8 × 3 + 2 × 5 × 3 = 118 cm ².
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