英语翻译后再应方程做出来!one angle in a triangle is double the smallest angle,and the third angle in the triangle is 5 more than four times the smallest angle.find the size of each angle.
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英语翻译后再应方程做出来!one angle in a triangle is double the smallest angle,and the third angle in the triangle is 5 more than four times the smallest angle.find the size of each angle.
英语翻译后再应方程做出来!
one angle in a triangle is double the smallest angle,and the third angle in the triangle is 5 more than four times the smallest angle.find the size of each angle.
英语翻译后再应方程做出来!one angle in a triangle is double the smallest angle,and the third angle in the triangle is 5 more than four times the smallest angle.find the size of each angle.
麦芽糖D1va ,
三角形中的一个角是最小角的两倍,且第三个角是比最小角的四倍还大5,求出三角形的每个角的角度.
solution:suppose the smallest angle in the triangle is X,then the other two angle is 2x and 4x+5,according to the threm of sum of triangle.then:
x+2x+4x+5=180,x=25,2x=50,4x+5=105.
在三角形里的一个角是其最小角的两倍,第三个角比最小角的四倍还要大5度,解出每个角。
设最小角x度
7x+5=180 x=25
其余两个角 50度、105度