The average length of the sides of ∆ABC is 12. What is the perimeter at ∆ABC?

The average length of the sides of ∆ABC is 12. What is the perimeter at ∆ABC?

A 24

B 36

C 12

D 18

Solution

Correct Answer: Option B

তিনটি বাহুর গড় = 12
তিন বাহুর সমষ্টি = 12 × 3 = 36

∴ ∆ABC এর পরিসীমা = 36