Question

Please help me with this.........

Answer 1

The correct answer is: x = 11

Explanation:

C is the center of circle described around a triangle ΔPQR or circumcenter, and according to this :

PC = RC = QC

PC = RC

3x + 7 = 5x - 15 => 5x - 3x = 7 + 15 => 2x = 22 => x = 22/2 = 11

x = 11

Check:

RC = QC

5x - 15 = 51 - x => 5x + x = 51 + 15 => 6x = 66 => x = 66/6 = 11

x = 11

God with you!!!