If the land of the isosceles triangle is 16 m and the other two sides are 10 m each, what is the area of the triangle?

A 36m²

B 42m²

C 48m²

D 50m²

Solution

Correct Answer: Option C

এখানে ,
সমদ্বিবাহু ত্রিভুজের ভূমি b=16cm
এবং সমান বাহুদ্বয়ের দৈর্ঘ্য a =10m

ক্ষেত্রফল -b/4 √(4a²-b²)
             =16/4√{4.(10)²-(16)²}
            =4√(400-256)
            =4√144
            =4×12
            48m²

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