Penjelasan dengan langkah-langkah:
21.
22. luas segitiga ABC = 1/2 x AB x CD
= 1/2 x (7+5) x 12
= 6 x 12
= 72 cm²
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Penjelasan dengan langkah-langkah:
21.
22. luas segitiga ABC = 1/2 x AB x CD
= 1/2 x (7+5) x 12
= 6 x 12
= 72 cm²