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Matematika SD Kelas V
a = 7 cm
t = 6 cm
1/2 x t = 1/2 x 7 = 3,5 cm
a x t = 7 x 6 = 42 cm
luas = 1/2 x a x t
luas = 1/2 x 7 x 6
luas = 21 cm²
Kelas : VII SMP
Bab : Segitiga
Pembahasan :
½ . Tinggi
= ½ . 6
= 3
a x t
= 7 x 6
= 42
Luas = ½ a x t
Luas = ½ x 42
Luas = 21 satuan luas