A-A+
If the sum of the measures of two angles is 18
问题详情
If the sum of the measures of two angles is 180°, each angle is a supplement of the other, whereas, if the sum of their measures is 90°, each is a complement of the other.
Column A Column B
The measure of an angle with The measure of an angle with
a supplement that measures 130° a complement that measures 40°
A.if the quantity in Column A is greater
B.if the quantity in Column B is greater
C.if the two quantity are equal
D.if the relationship cannot be determined from the information given请帮忙给出正确答案和分析,谢谢!
参考答案
正确答案:C
解析:若两个角度数的和等于180o,则称一个角是另一个角的补角;若两角度数和等90o,则称一个角是另一个角的余角。解:本题的正确答案为(C)。比较的左项为补角等于130o的角的度数;比较的右项为余角等于40o的角的度数。可能一些考生对Supplement(补角)和complement(余角)不认识,导致读题不清。其实在一时想不到是余角或补角时,只要弄清两者之间关系即可,根据题意可得:180o-130o=90o-40o