Question

#5! And #4 revisions!

Answer 1

Explanation:

Your working and answers are correct: x = 44, y = 43.

5. GH = 60°

Answer 2

4. Your working and answers are correct: x = 44, y = 43.

5. GH = 60°

Explanation:

5. Arc GH is double the inscribed angle GFH, so we have ...

2(4x+2) = 9x-3

8x +4 = 9x -3 . . . . . simplify

7 = x . . . . . . . . . . . . add 3-8x

Then the arc's measure is ...

(9·7 -3)° = (63 -3)° = 60°