Perhatian gambar berikut!​

Penjelasan dengan langkah-langkah:

95 + 3x – 5 + x + 10 = 180

100 + 4x = 180

4x = 180 – 100

4x = 80

x = 80/4

x = 20

<ABC

= x + 10

= 20 + 10

= 30°

95° + (3x – 5)° + (x + 10)° = 180

95 + 3x – 5 + x + 10 = 180

95 + (3 + x)x – 5 + 10 = 180

95 + 4x – 5 + 10 = 180

(95 – 5) + 4x + 10 = 180

90 + 4x + 10 = 180

(90 + 10) + 4x = 180

100 + 4x = 180

4x = 180 – 100

4x = 80

x = 80/4

x = 20

—–

Besar < ABC

< ABC

x + 10

20 + 10

30

Ninmy!