Suppose a triangle has two sides of length 2 and 5 and that the angle between these two sides is 60 degrees. what is the length of the third side of the triangle? 5 , 2sq root 3, sq root 3, sq root 19

Step-by-step explanation

Two sides and included angle is known to us .cosine rule can be applied to find the third side.

Let a =2 ,b=5 and <C=60 degrees ,we need to find the third side c.

According to cosine rule :

Substituting the values we have:

Taking root of both sides

The last option is correct.

you cant answer this dummy

step-by-step explanation:

answer: howdy

step-by-step explanation: