alleryತೆರೆದ ಮೇಲ್ಭಾಗದ ಘನಾಕೃತಿಯ ಪೆಟ್ಟಿಗೆಯು 8 × 5 × 3 cm; ಅದರ ಹೊರ ಪ್ರದೇಶ? ದಪ್ಪವನ್ನು ನಿರ್ಲಕ್ಷಿಸಿ.
A158 cm²
B120 cm²
C94 cm²
D118 cm²
Answer & Solution
Correct answer: D. 118 cm²
ತಳ ಮತ್ತು ನಾಲ್ಕು ಬದಿಗಳು ಒಟ್ಟು ವಿಸ್ತೀರ್ಣ 8 × 5 + 2 × 8 × 3 + 2 × 5 × 3 = 118 cm ².
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