A circle has a diameter of 12 cm. What is the area of the circle? A. 12π cm² B. 24π cm² C. 36π cm² D. 48π cm² 相关知识点: 试题来源: 解析 C。圆的面积公式为πr²,直径是 12cm,半径就是 6cm,面积为π×6²=36πcm²,A 选项结果错误,B 选项结果错误,D ...
A circle has a diameter of 10 cm. What's the area of the circle? A. 25π cm² B. 30π cm² C. 35π cm² D. 40π cm² 相关知识点: 试题来源: 解析 A。解析:圆的面积等于πr²,直径是 10 厘米,半径是 5 厘米,π×5²=25π 平方厘米。选项 B30π平方厘米错误,选项 C35...
This length is given by C=2πr, where r is the radius of the circle. The area of a circular shape is the amount of space covered by the shape. It is calculated using the formula A=πr2, where r is the radius.Answer and Explanation: The circumference of a ...
An equilateral triangle that has an area of 9 3^1/2 is inscribed in a circle. What is the area of the circle? 选项: A、6pi B、9pi C、12 pi D、9pi 3^1/2 E、18pi 3^1/2 答案: C 提问列表 提问 提问: 录音错误,无讲解。恳请老师解答。 解答: 点赞-1 阅读1944 解答: sysadm...
Question 3 Selected one answer choice 收藏 笔记 反馈 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 Inscribed square ABCD has a side length of 4. What is the area of the circle? A.2π B.4π C.6π D.8π E.10π 我的答案: 登录查看答案 ...
百度试题 结果1 题目 A square with side length 10 inches is inscribed inside of a circle. What is the area of the circle? ( ) A. 25√2 π B. 50 π C. 50√2 π D. 100 π 相关知识点: 试题来源: 解析 B 反馈 收藏
The radius of a circle is 3 cm. What is the area of the circle? A. 28.26 cm² B. 18.84 cm² C. 9.42 cm² D. 14.13 cm² 相关知识点: 试题来源: 解析 A。面积 = 3.14×3×3 = 28.26cm²。B 选项 18.84 是圆的周长;C 选项 9.42 计算错误;D 选项 14.13 计算错误。
An equilateral triangle that has an area of 9 3^1/2 is inscribed in a circle. What is the area of the circle? 选项: A、6pi B、9pi C、12 pi D、9pi 3^1/2 E、18pi 3^1/2 答案: C
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 ...
It is folded ... 01:45 The perimeter of a 100 cm long and 30 cm wide towel will be 01:31 What is the area of a rectangle, which is 5 cm long and 10 cm wide? 01:05 What is the area of the circle whose circumference is 110 cm? 03:23 Smita has a garden which is in the ...