Math, asked by ghanshayambind7894, 4 months ago

Page No 55:
Question 3:
Seg RM and seg RN are tangent segments of a circle with centre O. Prove that seg OR bisects ∠MRN as well as ∠MON. 10 std ssc​ goemetry

Answers

Answered by tonpesakshi
4

Answer:

Proof: 

In ∆OMR and ∆ONR,

 

seg RM ≅ seg RN [Tangent segment theorem] 

seg OM ≅ seg ON [Radii of the same circle] 

seg OR ≅ seg OR [Common side] 

∴ ∆OMR ≅ ∆ONR [SSS test of congruency] 

{∴ ∠MRO ≅ ∠NRO ∠MOR ≅ ∠NOR } [c.a.c.t.] 

∴ seg OR bisects ∠MRN and ∠MON.

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