Matematika kelas 8 Bab 7 Lingkaran Latihan 7.2 Essai 2-7 Mohon bantuannya!

2. sudut POQ = 2x sudut PAQ = 2 x 80 = 160°

3.

4. sudut SPQ = 180 -78 = 102°
sudut RSP = 180 - 125 = 55°

5. x+20 + 3x = 180
4x = 180-20 = 160
x = 160/4 = 40°
BAD = 40+20 = 60°
a. BOD = 2x60 = 120°
b. BOD = 360-120 = 240°