ABC ত্রিভুজের পরিধিকেন্দ্র হল O। কোণ OBC+কোণ BAC=90^@ প্রমাণ কর। | 9 | বৃত্ত...

In a Delta ABC , O is its circumcentre and angle BAC = 50^@ . The measure of angle OBC is

The circumcentre of the triangle ABC is O . Prove that angle OBC+angle BAC=90^@ .

In ABC, if AD perp BC and AD^(2)=BD xx DC, prove that /_BAC=90o

BC is a chord with centre O. A is a point on an arc BC as shown in Figure.Prove that: /_BAC+/_OBC=90^(0), if A is the point on the major arc.

BC is a chord with centre O. A is a point on an arc BC as shown in Figure.Prove that: /_BAC-/_OBC=90^(0), if A is the point on the minor arc

If O is the circumcenter of triangle ABC and angle OBC = 35^@ , then the angle BAC is equal to यदि O, triangle ABC का परिकेन्द्र है और angle OBC = 35^@ तो angle BAC बराबर है-

In Delta ABC, O is the circum centre of the circle. If angle OBC = 37^(@) then angle BAC is equal to :

In figure,ABC is the triangle inscribed in a circle with center O.show that angle A+ angle OBC =90^(@)

ABC is a triangle inscribed in a circle with centre O.Let alpha=/_BAC, where 45^(@)