1:A wheel with radius 1 m is rolled in a straight line throu

来源：学生作业帮编辑：作业帮分类：英语作业时间：2024/06/30 21:45:55

1:A wheel with radius 1 m is rolled in a straight line through one complete revolution on a fiat horizontally surface .How many metres did the center of the wheel travel horizontally from its starting location.
2:When the radius of a circle is trepled ,how are area and circumference of the circle affecyted?
3:What is the perimeter of the figure?
4:What is the perimeter of the figure?
5:The perimeter of ABC is 32 If ∠ABC=∠ACB and BC=12 ,what is the length of AB?
6：what is the radius of a circle having circumference 6π units?
7:the area of a givenn circle is 9π cm².what is the diameter of this circle,in cm?
8:In △ABC,∠B is 36 degrees larger than∠A and∠C is six times ∠A.what is the measure of ∠A?

1.2π；
2.area变为以前的9倍.circumference 变为以前的3倍.
3.换了个模样的长方形,周长不变.44cm
4.其实就是变成的长方形.22cm
5.等腰嘛.BC长10.
6.半径是3cm
7.直径是6cm
8.18°.
哎,不知道你几岁,其实很简单,不过就是英语.但是GMAT 其实也就考这些英语了.

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