Answer:
1. EF≅HG
2. EF║HG
3. Definition of parallelogram
4. when two parallel lines are cut by a transversal, alternate interior angles are congruent
5. EK≅GK
FK≅HK
Step-by-step explanation:
1. As per the properties of a parallelogram, the opposite sides are congruent.
hence in given parallelogram EFGH the two sides EF≅HG
2. As per the properties of a parallelogram, the opposite sides are parallel.
hence in given parallelogram EFGH the two sides EF║HG
3. Definition of parallelogram: A quadrilateral is called a parallelogram if two of its opposite sides are parallel.
4. As per the properties of transversal lines, when two parallel lines are cut by a transversal, alternate interior angles are congruent.
5. As proven in given question ΔEKF≅ΔGKH, so as per the CPCTC
EK≅GK and FK≅HK
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