Penjelasan dengan langkah-langkah:
AC = (5x - 8) cm
BD = (2x + 10) cm
a. 5x - 8 = 2x + 10
5x - 2x = 10 + 8
3x = 18
x = 18/3
= 6 cm
b. 5x - 8 + 2x + 10 = 7x + 2
= 7 . 6 + 2
= 44 cm
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Penjelasan dengan langkah-langkah:
AC = (5x - 8) cm
BD = (2x + 10) cm
a. 5x - 8 = 2x + 10
5x - 2x = 10 + 8
3x = 18
x = 18/3
= 6 cm
b. 5x - 8 + 2x + 10 = 7x + 2
= 7 . 6 + 2
= 44 cm