A. Diameter B. Circumference C. Center D. The distance from the center to the E. dge of the circle 相关知识点: 试题来源: 解析 D。本题考查圆规使用中的英语词汇“radius”的意思,radius 是半径,即从圆心到圆边缘的距离。A 选项是直径;B 选项是周长;C 选项是圆心。反馈 收藏 ...
The area of a circle with a radius of 5 cm is ___. A. 25π cm² B. 10π cm² C. 5π cm² D. 75π cm² 相关知识点: 试题来源: 解析 A。本题考查圆的面积计算公式,圆的面积 = π×半径²。半径为 5cm,所以面积为 25π cm²。选项 B 计算错误,应为 25π cm...
How to find the perimeter of a circle with a radius of 6.11 inches? A circle has a diameter of 12.22 inches. What is its circumference? If a circle has a area of 117.3 square inches. What is its perimeter? Disclaimer While every effort is made to ensure the accurac...
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,...
In terms of radius, the diameter is equal to two times the length of the radius of the circle. So $$D = 2R $$ Answer and Explanation:1 Given that the diameter of a circle is {eq}6 \rm ~cm. {/eq} $$D = 6 \rm ~cm $$ ...
The area of a circle with a radius of 3 cm is ___ square centimeters. A. 3π B. 6π C. 9π D. 12π 相关知识点: 试题来源: 解析 C。本题考查圆的面积公式。半径为 3 cm 的圆的面积是 A = πr² = π×3² = 9π 平方厘米。反馈 收藏 ...
Find the area of a circle with a radius of 7 units.搜索 题目 Find the area of a circle with a radius of 7 units. 答案 解析 null 本题来源 题目:Find the area of a circle with a radius of 7 units. 来源: 越分练习题 收藏 反馈 分享...
What is the ratio of the perimeter of A to the perimeter of B?( )A.1:2B.2:1C.2π:π+2D.π+2:2π 答案 C相关推荐 1Figure A is a circle with radius 6. Figure B is a bounded semicircle with radius 6. What is the ratio of the perimeter of A to the perimeter of B?( )A....
The circumference of a circle is the line drawn around the outer edge of the circle. The area of a circle is the total area within the circumference of a circle. Both formulas use the radius of the circle, a line drawn from the center of the circle to the outer edge....
七、英语数学(翻译)(10分)1.Find the area of a circle with a radius of 8 centimeters.2.A right triangle has one angle that measures90°.七、英语数学(翻译)(10 分) 1.Find the area of a circle with a radius of 8 centimeters. 2.A right triangle has one angle that measures 90°. ...