Question

Two tangent segments BC and BD are drawn to a circle with centre O such that CBD =120 Prove that OB=2BC

Answer 1

Answer:

Given: two tangent BC and BD

CBD=120

TO PROVE THAT :OB=2BC

PROOF

JOIN OB

THEN WE GET TWO OBC AND OBD

ODB =OCB (TANGENT DRAWN FROM AN EXTERANAL POINT TO THE RADII OF CIRCLE IS PERPENDICULAR)

BY APPLYING PY. THEROM

We get. OB²=OC²+CB²,

OB²=OD²+BD²

»OB=2BD

OR

»OB=2CB

HENCE PROVED

Step-by-step explanation:

Answer 2

Answer:

This is your Answer

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