# A triangle has two sides that measure 2.5 cm and 16.5 cm. Which could be the measure of the third side?

##### 1 Answer

Dec 8, 2016

Third side will have a value between

#### Explanation:

As the two sides measure

It is evident that

Then using the cosine formula of solving triangles,

the square on the third side will be given by

and as

Hence the third side say

or

or

Hence third side will have a value between