Question

I need to know if A and B are correct and I need HELP WITH C Triangle of item a)

Answer 1

Itrs is known that the sum of the internal angles of a triangle is 180°.

So, if a triangle has angles A, B and C, we have:

`A+B+C=180\degree`

a)

In this case, we know that values of the angles 68° and 53°. Let the missing one be x, so:

`\begin{gathered} 68\degree+53\degree+x=180\degree \\ 121\degree+x=180\degree \\ x=180\degree-121\degree \\ x=59\degree \end{gathered}`

So, the missing angles is 59°.