If the lengths of two sides of a right triangle are $5$ and $12$ units, what is the least possible length, in units, of the third side

Answers

The length of the third side of the tringle must lie in between 7 and 7 i.e length of the third side will always be greater than 7 and smaller than 17 according to the properties of a triangle.

According to the given question.

We have a right angled triangle with the two side lengths 5 unit and 12 unit.

From the properties of a triangle we know that ” the sum of the length of the two sides of a triangle is greater than the length of the third side”. Or ” the difference between the two sides of a triangle is less than the length of the third side”.

Let the third side of the triangle be x units.

So, by the properties of a triangle we can say that

12 – 5 < x

⇒ 7 < x

And 12 + 5 > x

⇒ 17 > x

Therefore, the length of the third side of the tringle must lie in between 7 and 7 i.e length of the third side will always be greater than 7 and smaller than 17.

Find out more information about properties of a triangle here:

properties of a triangle.properties of a trianglewe know that ” the sum of the length of the two sides of a triangle is greater than the length of the third side”. Or ” the difference between the two sides of a triangle is less than the length of the third side”.properties of a trianglewe can say thatproperties of a trianglehere: