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Verified answer
Mapel : MatematikaKelas : VI SD
Bab : Segitiga
Pembahasan :
AC = 10
AB + BC = 10
4 + BC = 10
BC = 6 cm
AD² = BD² - AB²
AD² = 5² - 4²
AD² = 25 - 16
AD² = 9
AD = 3 cm
Luas Segitiga BCD = 1/2 . at
Luas Segitiga BCD = 1/2 . BC . AD
Luas Segitiga BCD = 1/2 . 6 . 3
Luas Segitiga BCD = 9 cm²
Jawaban : A