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Bunuel
In Triangle D, the length of one side is 21 and the other side is 36. Which of the following could possibly be the length of the third side?

A. 13
B. 14
C. 16
D. 60
E. 63

Solution


    • According to the side properties of a triangle,
      o Difference of the two sides < the length of third side of a triangle < sum of the two sides
      ⟹ (36 – 21) < third side of triangle D < (36 +21)
      ⟹ 15 < third side of triangle D < 57
         And only such answer choice is 16 i.e. option C.
Thus, the correct answer is Option C.
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Difference of the two sides < third side < sum of the two sides

15< third side < 57

Option C

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