If isosceles △DEF has sides of length 11.5 and 13.7 m which of the following cound be the perimeter of the trigangle?

A 2.1
B 12.0
C 25.2
D 36.7

Correct Answer: 36.7

যেহেতু ত্রিভুজটি সমদ্বিবাহু (  Isosceles ),  সেহেতু ত্রিভুজটির দুইটির বাহু সমান হবে। এখানে 2টি বাহু 11.5 ও 13.7 দেওয়া আছে। এজন্য 3য় বাহুটি 11.5 বা 13.7 হবে। 1ম ক্ষেত্রে, 3য় বাহু 11.5 হলে, ত্রিভুজটির পরিসীমা = 11.5 +13.7 +11.5=36.7 2য় ক্ষেত্রে, 3য় বাহু 13.7 হলে, ত্রিবুজটির পরিসীমা = 11.5+13.7+13.7=38.9 অতেএব, ত্রিভুজটির সম্ভাব্য পরিসীমা = 36.7
Bissoy MCQ
#গণিত #Dhaka Bank Ltd #Dhaka Bank Ltd | Probationary Officer | 05-02-2021

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