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If the parallelogram is a square then angle A is congruent to angle B ,is congruent to angle C. AB is congruent to BC is congruent to CD.
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It's a rhombus...
None; because there is no justification for assuming that the two triangles (or trangles, as you prefer to call them) are similar.
An isosceles triangle has two congruent sides.
not congruent
Might not be congruent
not congruent
Congruent - SAS
congruent - asa
Congruent - SSS
Congruent-SSS
Nope Congruent - SSS Apex. You're welcome.
APEX Congruent-SAS
congruent - SSSAnswer by Arteom, Friday December 10, 2010
HPE is an angle congruent to angle HRN.
TBP an angle congruent to angle PTB.