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Can any please help me solve the sums 1, 2, 3. I will give you likes if you do that. I need it urgently.

Can any please help me solve the sums 1, 2, 3. I will give you likes if you do that. I need it urgently.

Question Image
Grade:10

1 Answers

Kalpit
19 Points
3 years ago
Answer to 3rd : 
Let AD perpendicular BC. Therefore  H lies on AD. 
Angle (ADB)=90 therefore Angle(BAD)=90-B 
AS O IS CIRCUMCENTER 
AO =CO 
Angle(AOC)=2B as O is center of circumcircle 
Therefore Angle (OAC)=(180-2B)/2 = 90-B =Angle(BAD)

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