A) \[100{}^\circ \]
B) \[80{}^\circ \]
C) \[65{}^\circ \]
D) \[60{}^\circ \]
Correct Answer: B
Solution :
The ratio of angle and its adjacent angle is \[4:5\] \[\therefore \] Smaller angle \[=\text{ }\frac{4}{9}\times 180{}^\circ =80{}^\circ \]You need to login to perform this action.
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