Question

Choose the correct option in which a triangle CANNOT be constructed with the given lengths of sides.

a) 3 cm, 4 cm, 5 cm

b) 7 cm, 6 cm, 5 cm

c) 10 cm, 7 cm, 2 cm

d) 12 cm, 8 cm, 6 cm


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Answer 1

Step-by-step explanation:

The difference of any two sides of a triangle must be less than the third side. This property of triangles is not satisfied by the given measurements as 10−7 = 3 > 2 and 10−2 = 8 > 7, though 7−2 = 5 < 10 is true.

Answer 2

The answer is:-
Option c)10cm,7cm,2cm
Explanation:-
Sum of two sides of a triangle should be greater than third side but here
7cm+2cm=9cm which is less than third side 10cm
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