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=√400-144
=√256
=16
AE=42-12
=30
AB=√16²+30²
=√256+900
=√1156
=34
jika membantu kasih bintang ya...
AE = 42 - 12
= 30
langkah keduan mencari EB
EB² = CB²-CE²
EB² = 20² - 12²
EB = √ 400-144
EB = √256
EB = 16
langkah ke tiga/ terakhir mencari BA
BA² = EB² + AE²
BA² = 16² + 30²
BA =√ 256 + 900
BA = √1156
BA = 34
Nah selesai .....