英语翻译1.一个多边形,除一个内角外,其余内角和是1850°,则这个内角是多少?2.有2个多边形,它们的边数之比为1:2,内角和的度数之比为1:4,求这两个多变形的边数.3.一个多边形除去一个内角外,其余内角的和是1130°,则这个内角是多少度?这个多边形的边数是多少?英语翻译：购物中心有许多店铺,如餐馆、快餐店、家电商场、书店、服装店、鞋店、体育用品店等.购物中心早上9点开始营业,晚上10点关门.每天都有许多人光临.

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英语翻译：Shopping Center has many shops, such as restaurants, fast food shops, appliance shopping centers, bookstores, clothing stores, shoe stores, sporting goods shops. Shopping Center 9:00 am open for business, 22 o'clock closing. Many people visit every day.

1.130度
2.3边 6边
3.130度 9边
这3个题都用到多边形内角和的公式（N-2）*180,还有内角度数小于180度
Shopping Center has many shops,such as restaurants,fast food shops,appliance shopping centers,bookstores,clothing stores,shoe stores,sporting goods shops.Shopping Center 9:00 am open for business,22 o'clock closing.Many people visit every day.