8x+7x+x=180°
16x=180°
×=11,25
100+5x+11,25=180°
=111,25+5x=180°
=5x=180-111,25
=5x=68,75
=×=68,75/5
×=13,75
besar ABP=(100+5x)
=(100+5.13,75)
=100+68,75
=168,75
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8x+7x+x=180°
16x=180°
×=11,25
100+5x+11,25=180°
=111,25+5x=180°
=5x=180-111,25
=5x=68,75
=×=68,75/5
×=13,75
besar ABP=(100+5x)
=(100+5.13,75)
=100+68,75
=168,75
Semoga membantu...