a
To prove : ΔHRJ is isosceles.
a

Explanation of Solution
Given information : The following information has been given
→OH≅→MJ
∠OHJ=∠MJH
∠HPJ=∠JKH
Formula used : If two
Proof : We know that in triangles HPK and JKH
∠OHJ=∠MJH
∠HPJ=∠JKH
Thus, as the sum of the angles of the triangles is same, we can say that
∠RJH=∠RHJ
Now, if ∠RJH=∠RHJ , then we can say that
ΔHRJ is isosceles
b
→HP=→JK is to be proved
b

Explanation of Solution
Given information : The following information has been given
→OH≅→MJ
∠OHJ=∠MJH
∠HPJ=∠JKH
Formula used : If two triangles have two congruent angles and the side between them is also congruent, then the triangles are also said to be congruent
Proof : We know that in triangles HPK and JKH
∠OHJ=∠MJH
∠HPJ=∠JKH
Thus, as the sum of the angles of the triangles is same, we can say that
∠RJH=∠RHJ
Thus, if all three angles of HPK and JKH are congruent, and also
HJ is the common chord
Hence, we can say that
ΔHPJ≅ΔJKH
Now, by virtue of congruency, we can say that
→HP=→JK
c
To prove : R is equidistant from O and M.
c

Explanation of Solution
Given information : The following information has been given
→OH≅→MJ
∠OHJ=∠MJH
∠HPJ=∠JKH
Formula used : If two triangles have two congruent angles and the side between them is also congruent, then the triangles are also said to be congruent
Proof : We know that in triangles ORP and MRK
∠OPR=∠MKR
→PO≅→KM
→PR≅→RK
Thus, by virtue of congruency of the triangles, we can say that
ΔROP=ΔRMK
Now, if ΔROP=ΔRMK , then we can say that
→RO≅→RM
Hence, given distance is proved
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