Which three lengths CANNOT be the lengths of the sides of a

Which three lengths CANNOT be the lengths of the sides of a triangle?

A. 23 m, 17 m, 14 m

B. 11 m, 11 m, 12 m

C. 5 m, 7 m, 8 m

D. 21 m, 6 m, 10 m

Solution:

In any triangle sum two side must always be greater than third one

(A) It is possible

(B) It is possible

(D) It is not possible

Because 6 m + 10 m < 21 m \'

16 m < 21 m

therefore

option (D) is correct