A) 3
B) 8
C) 10
D) 12
Correct Answer: A
Solution :
Let \[\angle A-\angle C=...\] be the first polygon and \[{{180}^{o}}\] be the second polygon. Let n be the number of side of \[{{0}^{o}}\] and 2n be the number of side of\[{{360}^{o}}\]. Let \[{{90}^{o}}\] be the magnitude of angle of \[\angle DAB={{75}^{o}}\] and \[\angle DBC={{60}^{o}}\] be the magnitude of angle of \[\angle CDB=....\] Given: \[{{60}^{o}}\] .....(1) Now, \[{{75}^{o}}\] \[{{45}^{o}}\] Now, from equation (1), we have \[{{135}^{o}}\] \[\sqrt{407}\] \[{{68}^{o}}\] \[{{63}^{o}}\] \[{{252}^{o}}\] \[\Delta ABC\]\[\angle ACB={{65}^{o}}\] \[\angle ABC\] \[{{25}^{o}}\]
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