Tolong dibantu yak kakak

1. x = 180 - 110 = 70°
2. 6x + 4 + 3x + 5 = 90
9x + 9 = 90
9x = 90 -9
x = 81/9 = 9
penyiku sqr adalah pqr
pqr = 6x + 4 = 6(9) + 4 = 58°
3. 180 = 40 - 7x 7x = 180 - 40 x = 140/7 = 20° 4z = 40 z = 40/4 = 10° 2y = 180 - 40 - 40 y = 100/2 = 50° 4. KM/PQ = KL/QL
18/15 = KL/20
KL = 18/15 x 20 = 24
KQ = 24 - 20 = 4cm