Penjelasan dengan langkah-langkah:
1
a. < PQT = 90° – 27°
< PQT = 63°
b. < ABD + < CBD = 180°
3x + 20° + 5x = 180°
8x = 180° – 20°
8x = 160°
x = 160°/8
x = 20°
< ABD = 3x + 20°
< ABD = 3(20°) + 20°
< ABD = 60° + 20°
< ABD = 80°
2a. Sudut luar berseberangan :
< AGC dan < DHF
< BGC dan < DHE
b. Sudut dalam sepihak :
< AGH dan < EHG
< BGH dan < FHG
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Penjelasan dengan langkah-langkah:
1
a. < PQT = 90° – 27°
< PQT = 63°
b. < ABD + < CBD = 180°
3x + 20° + 5x = 180°
8x = 180° – 20°
8x = 160°
x = 160°/8
x = 20°
< ABD = 3x + 20°
< ABD = 3(20°) + 20°
< ABD = 60° + 20°
< ABD = 80°
2a. Sudut luar berseberangan :
< AGC dan < DHF
< BGC dan < DHE
b. Sudut dalam sepihak :
< AGH dan < EHG
< BGH dan < FHG