1. Find x and then the value of all 4 angles (A, B, C) 2. Find the values of angles 1,2,3 (A, B, C)
3. Solve for x (A, B, C)
4. Solve for x (A, B, C)

BTW you don't have to show how you did the work, I only need the answers​

This is what i found “an explicit formula designates the nth term of the sequence, as an expression of n (where n = the term's location). it defines the sequence as a formula in terms of n. this example is an arithmetic sequence(the same number, 5, is added to each term to get to the next term).” i hope this you for what your looking for. can you plz mark me brainliest?