alleryઓપન-ટોપ ક્યુબોઇડલ બોક્સ 8 × 5 × 3 સેમી છે; તેનો બાહ્ય વિસ્તાર? જાડાઈને અવગણો.
A158 cm²
B120 cm²
C94 cm²
D118 cm²
Answer & Solution
Correct answer: D. 118 cm²
આધાર અને ચાર બાજુઓનું કુલ ક્ષેત્રફળ છે 8 × 5 + 2 × 8 × 3 + 2 × 5 × 3 = 118 cm ².
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