What is the surface area of the sphere?What is the volume of the sphere? ( Leave your answer with π in it. ) 2【题目】T he radius of a sphere is 9 cm. What is the surfaceare a of the sphere?What is the volume of the sphere? ( Leave your answer with π in it. ) ...
cm . What is the surface area of the sphere ? What is the volume of the sphere ? 相关知识点: 试题来源: 解析 144π;288π. Surface area :4π×62=144π; Volume :43×π×63=288π.结果一 题目 The radius of a sphere is 6 cm . What is the surface area of the sphere ? What ...
Radius of a circle is the distance between center of circle and the point on circle. Radius is half of diameter, the longest chord of circle. Circumference is the distance around the circle. Radius formula and equation at BYJU’S.
If the radius r of a sphere is increasing at a constant rate, then the rate of increase of the volume of the sphere is ( ) A. constant B. increasing C. decreasing D. decreasing for r1$ 相关知识点: 试题来源: 解析 B Since ()()= k, a positive constant, ()()=4π r^2 ()(...
1 Volume:The radius r of a sphere is increasing at a rate of 2 inches per minuteFind the rate of change of the volume when r=6 inches and r=24 inchesExplain why the rate of change of the volume of the sphere is not constant even though dr/dt is constant 2 Volume:The radius r...
The volume of a sphere with radius of 3 cm is___. A. 36π cubic centimeters B. 24π cubic centimeters C. 18π cubic centimeters D. 12π cubic centimeters 相关知识点: 试题来源: 解析 A。球体体积=4/3×π×半径的立方,4/3×π×3×3×3=36π 立方厘米。反馈...
Surface area :4π×92=324πcm2; Volume :43×π×93=972πcm3.结果一 题目 (1) If the radius of a sphere is 5 cm, the surface area of the sphere is , the volume of the sphere is .(2) If another sphere has a radius of 9 cm, the surface area of the sphere is , the vol...
(1)Find the rates of change of the volume when r=9 inches and r=36 inches. (2)Explain why the rate of change of the volume of the sphere is not constant even though dr/dt is constant. 相关知识点: 试题来源: 解析 (1)972π in.3/min, 15,552π in.3/min (2)If (dr)(dt) i...
解析 Let r be the radius of the sphere and Ar be the error in measuring the radius.Then,r=9 m and △r=0.03mNow,the surface area of the sphere (S)is given by,S=4nr²∴Hence,the approximate error in calculating the surface area is 2.16n m². ...
The radius r of a sphere is increasing at a rate of 2 inches per minute. Find the rate of change of the volume when r = 5 inches and r = 15 inches(a)r= 5 inches20元in3/min(b)r= 15 inchesln3(∥(n) 相关知识点: 试题来源: 解析 (d_1)/(d_6)=dv_1/=(db)/(dt) (...