QUESTION IMAGE
Question
the measures of the exterior angles of a pentagon are ( x^circ ), ( 3x^circ ), ( 4x^circ ), ( 6x^circ ), and ( 10x^circ ). find the measure of the largest exterior angle.
Step1: 多边形外角和定理
多边形外角和为\(360^{\circ}\),即\(x + 3x+4x + 6x+10x=360\)。
Step2: 合并同类项
\((1 + 3+4 + 6+10)x=360\),\(24x = 360\)。
Step3: 求解\(x\)
\(x=\frac{360}{24}=15\)。
Step4: 求最大外角
最大外角为\(10x\),把\(x = 15\)代入,\(10\times15 = 150\)。
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\(150\)