CATGeometry > Hardcos15∘\cos 15^\circcos15∘2sin15∘2 \sin 15^\circ2sin15∘2cos15∘2 \cos 15^\circ2cos15∘sin15∘\sin 15^\circsin15∘✅ Correct Option: 3Related questions:CAT 2024 Slot 2The coordinates of the three vertices of a triangle are: (1,2)(1, 2)(1,2), (7,2)(7, 2)(7,2), and (1,10)(1, 10)(1,10). Then the radius of the in circle of the triangle isCAT 2018 Slot 1In a circle with center OOO and radius 1 cm1 \mathrm{~cm}1 cm, an arc ABA BAB makes an angle 606060 degrees at OOO. Let RRR be the region bounded by the radii OA,OB\mathrm{OA}, \mathrm{OB}OA,OB and the arc ABABAB . If CCC and DDD are two points on OAOAOA and OBOBOB , respectively, such that OC=OD\mathrm{OC}=\mathrm{OD}OC=OD and the area of triangle OCDOCDOCD is half that of RRR , then the length of OCOCOC , in cm , isCAT 2019 Slot 2In a triangle ABCABCABC , medians ADADAD and BEBEBE are perpendicular to each other, and have lengths 12 cm12 \mathrm{~cm}12 cm and 9 cm9 \mathrm{~cm}9 cm, respectively. Then, the area of triangle ABCABCABC, in sq cm, is