alleryস্কেলের মানচিত্রে 1:50000, একটি রাস্তা 3.6 cm লম্বা। এর প্রকৃত দৈর্ঘ্য কত?
A0.18 km
B1.8 km
C18 km
D180 km
Answer & Solution
Correct answer: B. 1.8 km
প্রকৃত দৈর্ঘ্য হল 3.6 × 50000 = 180000 সেমি = 1.8 km।
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