Question

O is the center of the circle. Find the value of x. ​

Answer 1

Answer:

2x + x = 90° ( Property of inscribed triangle)

3x = 90

x = 30°

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Answer 2

∠DAC = ∠DBC = X° ( The inscribed angles subtend by same arc are equal.)

∠DCB= 90° (Angle in a semi circle or subtend by diameter are 90°)

∠BDC + ∠DBC= 90°

2x+x =90°

3x= 90°

X= 90/3= 30°