Theamountofpaperneededtocoveraboxtopintheshapeofatrapezoidis198cm2,iftheheightoftheboxtopis18cmandthelengthofoneofthebasesis10cm,findthelengthoftheotherbase.这道题帮我翻译下,Thlateralsurfacearaeof

Question

The amount of paper needed to cover a box top in the shape of a trapezoid is 198cm2,if the height of the box top is 18cm and the length of one of the bases is 10cm,find the length of the other base.这道题帮我翻译下,
Th lateral surface arae of the wrapper for an ice cream cone is 47.1cm2,if the lateral height of the ice cream cone is 6 cm,what qould be the the radius of the ice cream cone这道题帮我翻译下,
Brad has a yard that he wants to fence.The dimensions of the yard are 40 feet by 55 feet,how much fencing would he need to enclose the yard这道题帮我翻译下,

Answer 1

第一题,懒得翻译了,反正就是一个梯形,面积198平方厘米,梯形的高18cm,一条底边是10cm,让你求另一条底边.梯形面积=(上下底边之和）*高/2.底边=(198*2/18)-10 =12cm第二题,圆筒冰激凌侧面的包装纸面积是47.1平方厘米,如...