Carilah sudut X ?.... Tolong kak
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Penjelasan dengan langkah-langkah:
permisalan,
sudut a = 40°
sudut b = 85°
sudut c = ?
sudut d = x
a. sudut c
= 180 - 40 - 85
= 55°
b. sudut d (nilai x)
= 180 - 55
= 125°
ps. dalam 1 segitiga memikiki sudut sebesar 180°
sudut pelurus besarnya = 180°