Jawab:
Penjelasan dengan langkah-langkah:
AC² = AB²- BC²
AC² = 20² - 12²
AC² = 400 - 144
AC² = 256
AC = V256
AC = 16
Luas segitiga ABC = ½ x AC x BC
Luas segitiga ABC = ½ x 16 x 12
Luas segitiga ABC = 96
Luas segitiga ABC = ½ x AB x CD
96 = ½ x 20 x CD
96 = 10CD
CD = 96/10
CD = 9.6 cm
CD = DC = 9.6 cm.
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Jawab:
Penjelasan dengan langkah-langkah:
AC² = AB²- BC²
AC² = 20² - 12²
AC² = 400 - 144
AC² = 256
AC = V256
AC = 16
Luas segitiga ABC = ½ x AC x BC
Luas segitiga ABC = ½ x 16 x 12
Luas segitiga ABC = 96
Luas segitiga ABC = ½ x AB x CD
96 = ½ x 20 x CD
96 = 10CD
CD = 96/10
CD = 9.6 cm
CD = DC = 9.6 cm.