![Find the area of a ring whose outer and inner radii are 19 cm and 16 cm respectively.A. $330\\text{ cm}^{2}$ B. $310\\text{ cm}^{2}$ C. $320\\text{ cm}^{2}$ D. $350\\text{ cm}^{2}$ Find the area of a ring whose outer and inner radii are 19 cm and 16 cm respectively.A. $330\\text{ cm}^{2}$ B. $310\\text{ cm}^{2}$ C. $320\\text{ cm}^{2}$ D. $350\\text{ cm}^{2}$](https://www.vedantu.com/question-sets/f5fa3bcc-1491-4ebc-a67d-7d634624e8166192597492864622948.png)
Find the area of a ring whose outer and inner radii are 19 cm and 16 cm respectively.A. $330\\text{ cm}^{2}$ B. $310\\text{ cm}^{2}$ C. $320\\text{ cm}^{2}$ D. $350\\text{ cm}^{2}$
![Calculate the area of a circular ring whose outer and inner radii are \\[12\\] and \\[10\\ cm\\]. A.\\[118.16\\ cm^{2}\\]B.\\[128.16\\ cm^{2}\\]C.\\[138.16\\ cm^{2}\\]D.\\[148.16\\ cm^{2}\\] Calculate the area of a circular ring whose outer and inner radii are \\[12\\] and \\[10\\ cm\\]. A.\\[118.16\\ cm^{2}\\]B.\\[128.16\\ cm^{2}\\]C.\\[138.16\\ cm^{2}\\]D.\\[148.16\\ cm^{2}\\]](https://www.vedantu.com/question-sets/c74cc764-f0e2-401a-9c44-8a7fa4cf4c341391061485282133984.png)
Calculate the area of a circular ring whose outer and inner radii are \\[12\\] and \\[10\\ cm\\]. A.\\[118.16\\ cm^{2}\\]B.\\[128.16\\ cm^{2}\\]C.\\[138.16\\ cm^{2}\\]D.\\[148.16\\ cm^{2}\\]
![Find the area of a flat circular ring formed by two concentric circles (circles with same center) whose radii are 9 cm and 5cm. Find the area of a flat circular ring formed by two concentric circles (circles with same center) whose radii are 9 cm and 5cm.](https://www.vedantu.com/question-sets/e5843b52-5480-4eb4-b611-3db7e46437361654387414622228576.png)
Find the area of a flat circular ring formed by two concentric circles (circles with same center) whose radii are 9 cm and 5cm.
![electrostatics - Why is the area of an elemental ring with radius $r$ and width $dr$ is $2πr dr$? - Physics Stack Exchange electrostatics - Why is the area of an elemental ring with radius $r$ and width $dr$ is $2πr dr$? - Physics Stack Exchange](https://i.stack.imgur.com/T1KY8.jpg)