tolong ya buat bsk soalnya

Mapel : Matematika

Kelas : 7
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→ Sudut Garis Lurus = 180°


3p - 20° + 2p = 180°

5p = 180° + 20°

5p = 200°

p = 200°/5

p = 40°



Maka,

a] Nilai p = 40°


b] ABD

= 3p - 20
= 3(40) - 20
= 100°


c] DBC

= 2p
= 2(40)
= 80°