alleryओपन-टॉप क्यूबॉइडल बॉक्स 8 × 5 × 3 सेमी आहे; त्याचे बाह्य क्षेत्र? जाडीकडे दुर्लक्ष करा.
A158 cm²
B120 cm²
C94 cm²
D118 cm²
Answer & Solution
Correct answer: D. 118 cm²
पाया आणि चार बाजूंचे एकूण क्षेत्रफळ आहे 8 × 5 + 2 × 8 × 3 + 2 × 5 × 3 = 118 सेमी ².
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