<img src="https://id-static.z-dn.net/files/d78/f457cda009fbd83a1f3148b12283f929.jpg" alt="Besar
Besar <QPR adalaha.50b.55c.60d.65
180 – 40 – 2x
= 180 – 40 – 80 = 60
c. 60
180 – 40 = 140/2 = 70
<img src="https://id-static.z-dn.net/files/d78/f457cda009fbd83a1f3148b12283f929.jpg" alt="Besar
Besar <QPR adalaha.50b.55c.60d.65
180 – 40 – 2x
= 180 – 40 – 80 = 60
c. 60
180 – 40 = 140/2 = 70