The Greek mathematician Archimedes discovered that the surface area of a sphere is the same as the lateral surface area of a cylinder such that the radius of the sphere is the same as the radius of the cylinder and the height of the cylinder is the same as the diameter of the sphere. A...
The surface area of the sphere is obtained by using truncated cones that have the same lateral area as the lateral area of the corresponding rings of the cylinder that is tangent to the sphere, so that the sum of the areas of the cones is constant. As the cone sections become smaller ...
A sphere has a diameter of 10 cm. What is the surface area of the sphere? A. 100π square centimeters B. 200π square centimeters C. 300π square centimeters 相关知识点: 试题来源: 解析 B。球的表面积为 4πr²,直径为 10cm,半径为 5cm,表面积为 200π 平方厘米。
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...
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 is the volume of the sphere ? 答案 144π;288π.相关推荐 1The radius of a sphere is 6 cm . What is the...
百度试题 结果1 题目The radius of a sphere is 4. What is the surface area of the sphere?( ) A.64π B.48π C.36π D.32π 相关知识点: 试题来源: 解析 A 反馈 收藏
Thesurface area of a spheredoes not depend on its orientation in space. If the radius of the sphere doubles, the surface area quadruples. A sphere’s surface area isalways positive. SA = 4πr2is the formula for calculating a sphere’s surface area. ...
旋转体表面积的计算及球体表面积的推导(Surface Area of a Revolution and the Deduction of the Sphere) 关注00:00 / 22:50 自动 倍速 当前浏览器已限制自动播放 登录免费享高清画质 立即登录 1 人正在看 (全站<10人在看) , 0 条弹幕 请先登录或注册 弹幕礼仪 发送 1...
【题目】What is the surface area of this sphere?You have prizes to reveal! GoUse π≈ 3.14 and round your answer to the nearest hundredth19cmsquare centimetersSubmit 相关知识点: 试题来源: 解析 【解析】5H=4TTr2514=4(3.14)(101)^2514=4,534,140cm^2 ...
Surface area of a sphere formula Given the radius, the total curved surface area of a sphere can be found by using the following formula: S.A. = 4πr2 pi or π is a special mathematical constant, and it is approximately equal to 22/7 or 3.14. ...