Question

In a triangle with angles measuring a, b and c degrees, the mean of b and c is a. What is the

value of a?

Answer 1

60

Explanation:

`a+b+c=180\\(b+c)/(2)=a \rightarrow b+c=2a\\\\a+2a=180\\3a=180\\a=60`

Therefore, the value of a is 60 degrees