Question

# If the perimeter of a triangle is 100 cm and the length of two sides are 30 cm and 40 cm, the length of the third side will be

- 30 cm
- 40 cm
- 50 cm
- 60 cm

Hint:

### Perimeter of triangle = sum of all its sides

## The correct answer is: 30 cm

### Perimeter of triangle = sum of all its sides

### Related Questions to study

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Since the three sides are equal therefore the three angles, opposite to the equal sides, are equal in measure. Therefore, it is also called an equiangular triangle, where each angle measure 60 degrees.

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Since the three sides are equal therefore the three angles, opposite to the equal sides, are equal in measure. Therefore, it is also called an equiangular triangle, where each angle measure 60 degrees.