If a triangle has a 90 degree angle and x angle and 2x angle

X angle would be 30, and thus, we know that 2X angle would be 60. We know all this because in a triangle, all the angle measures are equal to 180degrees, and since we already have a 90 degree angle, we can subtract that from the total amount of 180, we are then left with 90 and can divide accordingly. 30
+ 60 = 90

1935/10,000= 387/2000the answer to the question is c