Sagot :
From the given figure ,
RECA is a quadrilateral
RC divides it into two parts
From the triangles , ∆REC and ∆RAC
RE = RA (Given)
angle CRE = angle CRA (Given)
RC = RC (Common side)
Therefore, ∆REC is Congruent to ∆RAC
∆REC =~ ∆RAC by SAS Property
⇛CE = CA (Congruent parts in a congruent triangles)
Hence , Proved
Additional comment:-
SAS property:-
"The two sides and included angle of one triangle are equal to the two sides and included angle then the two triangles are Congruent and this property is called SAS Property (Side -Angle-Side)
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Step-by-step explanation:
Given:
- RA ≅ RE
- EC ≅ AC
Also we observe that:
- RC ≅ CR as common side of both triangles
Since three sides of ΔREC and ΔRAC are congruent:
- ΔREC ≅ ΔRAC by SSS