Penjelasan dengan langkah-langkah:
Trigonometri
Aturan Sinus
AB/sin45° = AC/sin90°
AB = sin 45° × (√2+√6)/1
AB = ½√2 (√2 + √6)
AB = ½(2+√12)
AB = √3 + 1
AB/Sin P = BP/Sin A
Sin P = AB × Sin A/BP
Sin P = (√3 + 1) × Sin 45°/2
Sin P = (√3 + 1) × ½√2 × ½
Sin P = ¼√2(√3 + 1)
Sin P = ¼(√6 + √2)
Sin 75° = ¼(√6+√2)
Maka besar sudut APB adalah 75° ✓
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Verified answer
Penjelasan dengan langkah-langkah:
Trigonometri
Aturan Sinus
AB/sin45° = AC/sin90°
AB = sin 45° × (√2+√6)/1
AB = ½√2 (√2 + √6)
AB = ½(2+√12)
AB = √3 + 1
AB/Sin P = BP/Sin A
Sin P = AB × Sin A/BP
Sin P = (√3 + 1) × Sin 45°/2
Sin P = (√3 + 1) × ½√2 × ½
Sin P = ¼√2(√3 + 1)
Sin P = ¼(√6 + √2)
Sin 75° = ¼(√6+√2)
Maka besar sudut APB adalah 75° ✓