(4) 180-(50+60)
=180-110
=70
180-70=110 よって110°
(5) 180-80=100
180-(100+37)
=180-137
=43 よって43°
(6) x+32=65
x=65-32
x=33 よって33°
(4) 180-(50+60)
=180-110
=70
180-70=110 よって110°
(5) 180-80=100
180-(100+37)
=180-137
=43 よって43°
(6) x+32=65
x=65-32
x=33 よって33°
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