or origin, of the circle to its circumference and encompasses the area of any given angle that also originates from the center of the circle. A sector is best thought of as a piece of pie, and the bigger the an
1【题目】某扇形的半径是3,周界为18,求扇形的面积T he radius of a sector is 3 and its perimeter is 18.Find the are a of this sector. 2【题目】某扇形的半径是4,周界为23,求扇形的面积T he radius of a sector is 4 and its perimeter is 23.Find the are a of this sector.反馈 收藏 ...
Radius of a sector of a circle is 3.5 cm and length of its arc is 2.2 cm. Find the area of the sector.
百度试题 结果1 题目4 Given that the radius of a sector is 9 cm and the are length is 20 cm, then the are a of the sector is ___ $$ c m ^ { 2 } $$. 相关知识点: 试题来源: 解析 4 90 反馈 收藏
Percentages are a function of mathematics that enables you to compare two or more unequal things by expressing both as portions of 100. You can also express the number as a fraction or a decimal. For example, 10 percent is 10 out of 100, or 1/10 or .10. Calculate percentages by dividi...
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The radius and the area of a sector are 12 cm and 30π cm2 respectively. 某扇形的半径及面积分别为12 cm及30π cm2. (1) Find the angle of the sector. 求该扇形的角. (2) Express the perimeter of the sector in terms of π. 以π表该扇形的周界. 相关知识点: 试题来源: 解析 (1...
<p>To find the area of the sector of a circle with a radius of 8 cm and an arc length of 15 cm, we can follow these steps:</p><p><strong>Step 1: Use the formula for the length of an arc</strong> The formula for the length of an arc \( L \) is given by: \
题目【题目】A sector of radius 10 cm is bent to form a conical cup as shown.sectorjoinwhen edges AB and CBbecomesarejoined withtape10cmSuppose the resulting cone has base radius r cm and height h cm.If h isthe heightof the cone show th h=√(100-(g/(36))^2). 相关知识点: ...
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