1] 84 cm/42° = a/123°
2° = a/123°
a = 123° . 2°
a = 246 cm
2] 45/42° = a/126°
a = 126° . 45/42°
a = 135 cm²
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1] 84 cm/42° = a/123°
2° = a/123°
a = 123° . 2°
a = 246 cm
2] 45/42° = a/126°
a = 126° . 45/42°
a = 135 cm²
Jawaban Terlampir di atas.
Semoga membantu ^_^