Question

What is the third side of a triangle if two sides are 7cm and 9cm
Options
a)18 cm b)20cm c)3cm d)5cm

Answer 1

Answer:

Step-by-step explanation:

In a triangle sum of two sides is greater than the third side

Here,

7+9=16 is greater than 3 and 5.

Therefore the triangle can either have 3cm or 5cm as one of its sides.

Answer 2

★According to the triangle inequality, the sum of any two sides of a triangle should be greater than the third side.

Here, 7+9 = 16

Therefore, here two options can be selected i.e., option (c) & option (d) i.e., 3cm&5cm respectively.

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