Jawaban:
4.) Luas jajar genjang:
L = alas × tinggi
L = 10 × 12
L = 120cm²
5.) Panjang sisi AC:
AB = BC
K = AB + BC + AC
135 = 47 + 47 + AC
135 = 94 + AC
135 - 94 = AC
41cm = AC
6.) Luas segitiga:
L = ½ × alas × tinggi
L = ½ × 21 × 12
L = ½ × 252
L = 126cm²
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Jawaban:
4.) Luas jajar genjang:
L = alas × tinggi
L = 10 × 12
L = 120cm²
5.) Panjang sisi AC:
AB = BC
K = AB + BC + AC
135 = 47 + 47 + AC
135 = 94 + AC
135 - 94 = AC
41cm = AC
6.) Luas segitiga:
L = ½ × alas × tinggi
L = ½ × 21 × 12
L = ½ × 252
L = 126cm²