(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(...
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...
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 . ...
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 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 central angle is equal to the measure of the intercepted arc. You can also find the ...
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...
Problem 10Mary divides a circe into 12 sectors. The central angles of these sectors, measured in degrees, are all integers and they form an arithmetic sequence. What is the degree measure of the smallest possible sector angle? C(A)5(B)6(C)8(D)10(E)12 相关知识点: 试题来源: 解析...
Find the radian measure of the central angle of a circle of radius equal to 80 km that intercepts an arc of length equal to 150 km. Arc Length of a Sector: In a circle, a sector is referred to as a part of the circle that...
sectors. The central angles of these sectors, measured in degrees, are all integers and they form an arithmetic sequence. What is the degree measure of the smallest possible sector angle?( ) A.5 B.6 C.8 D.10 E.12相关知识点: 试题...
解析 Radius=6cm Denote the radius of a sector as rcm Derive r=6 from r2×3.146=18.84. The radius is 6cm.结果一 题目 Given that the area of a sector is 18.84cm2 and the central angle is 60∘, find the radius and circumference of the sector. (π=3.14) 答案 Radius=6cm, ...