设所求角为x,则补角为180°-x,余角为90°-x,由题意得:
(180°-x)-(90°-x)
=180°-x-90°+x
=90°.
故答案为:90.
猜你喜欢
- 1the fried chicken is very nice.could you have( A.some more B.more C.another D.any more
- 2长大后我要去美国的英文写法
- 3建筑工地运来5车水泥,用去13吨以后还剩17吨,每车运来水泥多少吨?(请列方程)
- 4英语单词的读音规则是什么?
- 5We talk on the car phone once a week和We also talk on the phone once a week意思是否一样?
- 6有4分邮票和8分邮票共54枚,总值为2元6角8分,两种邮票各多少枚?
- 7模仿英语例句改写句子~
- 8一个陌生人的微笑作文
- 9我经常和我的祖父在一起.翻译成英文
- 10come,don't,Jim,to,ask,to,dinner,forget,for,连词成句