Question

tolong dong yg bisa bantu​

Answer 1

3x- 5 + x + 25 = 180°
4x = 180° + 5 - 25
4x = 160°
x = 40°.

(a) x + 25 = 40 + 25
= 65°
(b) 3x - 5 = 3 × 40° - 5
= 120° - 5
= 115°

(c) 2z - 15 + (a) = 180°
2z = 180° + 15 - 65°
2z = 180° - 50°
z = 130°/2
z = 65°

(d) 4y + 1 + (b) = 180°
4y = 180° - 116°
4y = 64°
y = 16°

Jadi, nilai x = 40°, y = 16°, dan z = 65°.

Ok...