先对一些词翻译:length——长度 width——宽度 rectangle——矩形 respectively——各自地 increased——被增加 decreased——被减少 original——最初的 area——面积 percentage——百分比翻译:一个长方形的长和宽分别是12cm和5cm.如果长度增加50%,宽度减少20% (1)求原长方形的面积 (2)求新长方形的面积 (3)求...
length,width=map(float,input("pleaseinputlengthandwidthofrectangle:\n").split())#计算周长和面积perimeter=2*(length+width)area=length*width#输出结果到标准输出,保留2位小数print("perimeter=%.2f,area=%.2f\n"%(perimeter,area)) 本题编程思路如下:使用input函数提示用户输入长和宽,将输入值转换成浮点...
22 centimeters. How many kinds of rectangles are there? What is the largest area? 相关知识点: 试题来源: 解析 5种; 30平方厘米. 一个长方形的周长是22厘米,并且长和宽的长度都是整数.那么这样的长方形有多少种?其中面积最大是多少?反馈 收藏 ...
If the length is increased by 50% and the width is decreased by 20%.(a)Find the original area of the rectangle.(b)Find the new area of the rectangle.(c)Find the percentage increase in the area of the rectangle. 答案 先对一些词翻译:length——长度 width——宽度 rectangle——矩形 respec...
The length and the width of a rectangle are 12 cm and 8 cm respectively. It is given that the perimeter of the rectangle is less than 46 cm.(a) Set up an inequality to represent for unknown situation.(b) Can the width of the rectangle be 11 cm? Explain your answer. 相关知识点: ...
百度试题 结果1 题目【题目】The length and width of a rectangle are shownbelow.fthe area ofthe rectangle is 105 in2,what is the value of ?x-32x+5 相关知识点: 试题来源: 解析 【解析】 反馈 收藏
6 The length and width of a rectangle are a centimetres and b centimetres,respectively,and a 6.The side length of a square is equal to thedifference between the two sides of the rectangle.How many centimetresis the sum of their perimeters?6 The length and width of a rectangle are a ...
1【题目】Both the length and width of a recta ngle are integers,and the perimeter is 30.Fi nd the largest possible are a of the rectangle. 2【题目】Both the length and width of a recta ngle are integers ,and the perimeter is 30 。Fi nd the largest possibl eare a of the rectangle...
(Suppose the width of the rectangle is X cm, the length of the rectangle is (2X+3)cm.) 2[X+(2X+3)]=84 3X+3=42 3X=39 X=13 2X+3=29所以长方形的宽是13厘米,长是29厘米. (Therefore the width of the rectangle is 13 cm, the length of the rectangle is (2X+3)cm.)...
结果1 题目 If the length and width of the rectangle in the figure above are each increased by 30%, what will the perimeter of the rectangle be? () A. 117 B. 180 C. 234 D. 2,000 E. 3,505 相关知识点: 试题来源: 解析 C 反馈 收藏 ...