Question

can someone answer this asap​

Answer 1

Explanation:

ye larki har us question par khyu aa rahai jis par hum

Answer 2

Explanation:

Given : angle BAC is the angle at the circumference and angle BOC is at the centre of the circle with centre O.

To prove : angle BOC = 2 angle BA

Construction : AO is joined n is extended to D.

Proof : In triangle AOB ,

OB = OA (radii)

Angle ABO = angle BAO

exterior angle BOD = angle BAO + angle ABO

Exterior angle BOD = angle BAO + angle BAO

exterior angle BOD = 2 angle BAO(let it be 1)

Again, in triangle AOC,

OC = OA

angle ACO = angle CAO

exterior angle DOC = angle ACO + angle CAO

exterior angle DOC = angle CAO + angle CAO

exterior angle DOC = 2 angle CAO(let it be 2)

Adding 1 n 2

exterior angle BOD + exterior angle DOC = 2 angle BAO + 2 angle CAO

exterior angle BOD + exterior angle DOC = 2(Angle BAO + angle CAO)

Angle BOC = 2angle BAC ( PROVED)