5. Draw a circle in a square, and the area of the circle is12.56cm^2 then the area of the square is( )cm^2 at least (至少).A. 12.56B. 14C. 16D. 20 相关知识点: 试题来源: 解析 C. 16 已知圆的面积为12.56平方厘米,根据圆的面积公式,可求得圆的半径为2厘米。由于圆内切于正方...
Here we have a rectangle, covered with small squares. Each small square stands for 1 square centimetre, that is, each small square is cm on each side. Count the number of squares that cover each rectangle. This will give you thearea of a rectanglein square centimetres. Also, write the l...
解析 C The diameter of the circle is equal to the length of a side of the square. The area of the square is 10×10=100. 一个圆内切在一个正方形上,如果圆的直径是10,那么正方形的面积是多少( ). A. 40 B. 25 C. 100 D. 400 圆的直径等于正方形边长,正方形的面积是10×10=100....
Given a square with area . A circle lies inside the square, such that the circle touches all sides of the square. Another square with area lies inside the circle, such that all its vertices lie on the circle. Find the value of . 相关知识点: 试题来源: 解析 http://gallery.fbcontent.c...
结果1 题目 If 4 is the radius of the above circle inscribed in a square as shown, what is the area of the square? What is the area of the shaded region? 相关知识点: 试题来源: 解析 Area of square =64Area of shaded region =64-16 π 反馈 收藏 ...
A circle has an area of 25 square decimeters. What is the area in square centimeters? A. 250 square centimeters B. 2500 square centimeters C. 25000 square centimeters D. 250000 square centimeters 相关知识点: 试题来源: 解析 B。1 平方分米等于 100 平方厘米,25 平方分米换算为平方厘米就是 ...
Question 2 Enter your answer as an integer or a decimal in the answer box. Backspace to erase. 收藏 笔记 反馈 1 2 3 4 5 6 7 8 9 10 11 12 A circle is inscribed in a square with area 36. What is the area of the circle?___ 我的答案: 登录查看答案 ...
Now, area of this circle = = πr2= $\frac{22}{7}$ x 4.2 x 4.2 = 55.44 cm2 Example 2 Four equal circles are described about four corners of a square so that each touches two of the others, as shown in the figure. Find the area of the shaded region, if each side of the sq...