115.What is the ratio of the are a of Circle C to the are a of Square S if the lengths of a diameter of C and a side of S are equal?(; A.元:1 B.π:2 C.元:3 D.元:415. What is the ratio of theare a of Circle C to the are a of Square S if the lengths of a...
What is the ratio between the side of thesquare and the radius of the circle?(a) √x:1(b)1:vx(c)1:x(d) ∴:1 相关知识点: 试题来源: 解析 Area ofclrcle=xsiny Areaofsin(e=a^2 xr^2=a^2 π=(a^2)/(b^2) π=(-4/2)^2 √π/1=a/r、元:1Ansop+lm A 反馈 收藏 ...
Circle Area = π× r2 r = radius Ellipse Area = πab Sector Area = ½ × r2×θ r = radiusθ = angle in radians Note: h is at right angles to b Example: What is the area of this rectangle? The formula is: Area = w × h w = width h = height We know w = 5 and ...
The area of a circle with a radius of 3 cm is equal to the area of a square. What is the side length of the square? A. 3 cm B. 3π cm C. 3√π cm D. 9 cm 相关知识点: 试题来源: 解析 C。解析:圆的面积为π×3×3 = 9π平方厘米。设正方形边长为 a,则 a×a = 9π,...
The area of a circle is equal to the area of a square. = &... 返回 123456789 A.Quantity A is greater. B.Quantity B is greater. C.The two quantities are equal. D.The relationship cannot be determined from the information given.
解析 A Use any value for , say. Then the area of divided by the area of is divided by . The quotient is . 正方形的边长和圆的半径是相同的.那么圆的面积除以正方形的面积等于多少( )? . . . . 取,那么圆的面积是,正方形面积是,商为.故选.反馈 收藏 ...
Answer to: If the area of a circle is equal to the area of a square with side 2 sqrt(pi), what is the diameter of the circle? By signing up, you'll...
For example, suppose we have a circle that has a radius of 7 cm as shown in the figure below. Its area is given by – Area = πr2= $\frac{22}{7}$ x 7 x 7 = 154 cm2 Suppose, instead of the radius we are given the diameter of a circle, how do we calculate the area?
A. square meter B. cubic meter C. meter D. centimeter 相关知识点: 试题来源: 解析 A。圆的面积单位是平方米等。“cubic meter”是体积单位;“meter”和“centimeter”是长度单位。易错点是容易把长度单位和面积单位混淆。区分方法是记住圆面积单位带有“square”。反馈...
解析 C。选项 A 是数学符号表达,不是英语表达。选项 B“pie”拼写错误,应该是“pi”,且“square”缺少动词形式。选项 C 表达正确,“times”表示“乘以”,“squared”是“平方”的正确表达。选项 D“the square of pi r”表达不准确,应该是圆半径的平方乘以圆周率。