Class 11Mathematics10-1.Circle and System of CirclesGeometrical problems regarding circle and its properties
EasyThe perimeter of a certain sector of a circle is equal to the length of the arc of the semicircle. Then,the angle at the centre of the sector in radians is
- A$\pi-2$
- B$\pi+2$
- C$\frac{\pi}{3}$
- D$\frac{2 \pi}{3}$
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DifficultJEE MAIN 2020
View SolutionIf one of the diameters of the circle $x^{2}+y^{2}-2 \sqrt{2} x-6 \sqrt{2} y+14=0$ is a chord of the circle $(x-2 \sqrt{2})^{2}+(y-2 \sqrt{2})^{2}=r^{2}$,then the value of $r^{2}$ is equal to
DifficultJEE MAIN 2022
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