Question

Two sides of triangle are of lengths 5 cm and 1.5 cm. The length of the third side of the triangle cannot be

• A. 3.6 cm
• B. 3.4 cm
• C. 4.1 cm
• D. 3.8 cm

Answer 1

The correct option is B

3.4 cm

Here, if the length of third side will be 3.4 cm.

Then, 3.4 + 1.5 = 4.9 cm < 5 cm

But, we know that, in a triangle, sum of length of two sides should be greater than third side.

Thus, the length of the third side of the triangle cannot be 3.4 cm.