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1. 把下面的角分别填在相应的圈内。
$37^{\circ}$ $81^{\circ}$ $14^{\circ}$ $115^{\circ}$ $175^{\circ}$ $98^{\circ}$ $5^{\circ}$ $133^{\circ}$
锐角：
钝角：
$37^{\circ}$ $81^{\circ}$ $14^{\circ}$ $115^{\circ}$ $175^{\circ}$ $98^{\circ}$ $5^{\circ}$ $133^{\circ}$
锐角：
钝角：
答案
锐角：$37^{\circ}$，$81^{\circ}$，$14^{\circ}$，$5^{\circ}$
钝角：$115^{\circ}$，$175^{\circ}$，$98^{\circ}$，$133^{\circ}$
钝角：$115^{\circ}$，$175^{\circ}$，$98^{\circ}$，$133^{\circ}$
