Mathematics
Junior High
汚くてごめんなさいっ
3ばんと5ばんと6ばんがわかりません!
1
次の図で,r の値を求めなさい。
55
0
439
-56°
50%
60%
40°
0
+22%
O。
x°
150°
x°
120=4
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