Maths-
General
Easy

Question

In the given figure, 2 b minus a equals 65 to the power of ring operator end exponent and angle B O C equals 90 to the power of ring operator end exponent the measure of A O B comma C O D equals....................., ...................

  1. 25°,125°    
  2. 30°,110°    
  3. 40°,160°    
  4. 35°,135°    

The correct answer is: 35°,135°


    A O B plus B O C plus A O D plus C O D space equals 360
a plus 90 plus 2 a plus b plus 15 plus 2 b equals 360
105 plus 3 a plus 3 b equals 360
3 a plus 3 b equals 360 minus 105
3 a plus 3 b equals 255
A l s o space
2 b minus a equals 65
a equals 35 space comma b equals 15

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