tentukan besar dan nilai dari gambar ini! btuh pencerahan
Jawaban:
1.
3x + 2x = 180
5x = 180
x = 180/5
x = 36°
<ABD
3x
3(36)
108°
<DBC
2x
2(36)
72°
pembuktian
<ABD + <DBC = 180°
108° + 72° = 180°
180° = 180° ( terbukti)
2.
2x + 56 = 90
2x = 90 - 56
2x = 34
x = 34/2
x = 17°
semoga membantu
3x + 2x = 180
5x = 180
x = 180/5
x = 36°
<ABD
3x
3(36)
108
<DBC
2x
2(36)
72
2x + 56 =90
2x = 90 - 56
2x = 34
x = 34/2
x = 17
[answer.2.content]
