C If we let a be the smallest sector angle and r be the difference between consecutive sector angles, then we have the angles a, a+r, a+2r, ⋯. a+11r. Use the formula for the sum of an arithmetic sequence and set it equal to 360, the number of degrees in a circle....
Sector B,then the radius of Sector A is the radius of Sector B.(A)of(B)2 times(C)1 B of(D)4 times2 Given that the areas of two sectors are equal and the central angle of Sector A i of the central angle of Sector B,then the radius of Sector A is()the radius of Sector B...
返回 12345678910111213141516 What is the measure of the central angle for the sector representing the percentage of students who take the bus? A.40° B.72° C.108° D.144° E.172° 我的答案:
As shown in the figure below, the sector has a central angle of 45∘ and the radius of 8. Fill in the blanks. (Round your answers to the nearest hundredth and use 3.14 for π.) The area of the sector is . The arc length of the sector is . The perimeter of the sector is . ...
1The central angle is 45∘, and the radius is 8. Round your answers to the nearest hundredth and use 3.14 for π.The area of the sector is .The arc length of the sector is .The perimeter of the sector is .→45% 2The central angle is 45∘, and the radius is 8. Round your...
3As shown in the figure below, the sector has a central angle of 45∘ and the radius of 8. Fill in the blanks. (Round your answers to the nearest hundredth and use 3.14 for π.)The area of the sector is .The arc length of the sector is .The perimeter of the sector is .反馈...
The area of the sector with the central angle of {eq}\theta {/eq} and having a radius of circle {eq}r {/eq} is given by the following formula: $$\dfrac{\theta}{360^{\circ}}\times \pi r^{2} $$Answer and Explanation:
Central Angle Formula Lesson Summary Frequently Asked Questions What is a central angle? A central angle is an angle whose vertex is present at the center of a circle formed by the two radii as the sides of the angle. How do you find the central angle of a circle? The measure of a ...
结果1 题目【题目】Find the area of a sector where the central angle is 1100 and the diameter is 12 inches. Round to the nearest tenth152.0m^2 26.2in234.6m^2180.9in 相关知识点: 试题来源: 解析 【解析】CNeC=B/(360)πr^2 反馈 收藏 ...
(A)unchanged(B)is increased by 3 times(C)decreased toof its original area(D)is increased to 3 times its original area4 If the central angle of a sector is decreased to of its original angle and the radius is increased to 3 times its original radius, then the area of the sector is(...