Penjelasan dengan langkah-langkah:
L∆ = L∆
1/2 x AB x AC = 1/2 x CB x AD
1/2 x 20 x 15 = 1/2 x 25 x AD
150 = 25/2 x AD
AD = 300/25
AD = 12 cm
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Penjelasan dengan langkah-langkah:
L∆ = L∆
1/2 x AB x AC = 1/2 x CB x AD
1/2 x 20 x 15 = 1/2 x 25 x AD
150 = 25/2 x AD
AD = 300/25
AD = 12 cm