Question

jawab dong plesss besok mau kumpul ​

Answer 1

Verified answer

∠B9 = ∠A4 + ∠A5

∠A3 + ∠B9 = 180°

(2x - 24)° + (3x + 19)° = 180

5x - 5 = 180

5x = 185

x = 37

∠A3 = 2(37) - 24 = 74 - 24 = 50°

∠B9 = 3(37) + 19 = 111 + 19 = 130°

∠A6 bertolak belakang dengan ∠A3

∠A6 = ∠A3 = 50°

∠B10 = 180° - ∠B9 = 180 - 130 = 50°

∠A5 merupakan penyiku ∠A6

∠A5 = 90° - 50° = 40°