Are quadrilaterals ABCD and EFGH congruent if:
a) 

b) 

Exercises 39, 40
a)
To proof:
The quadrilaterals ABCD and EFGH are congruent, if two sides and two angles of quadrilaterals are congruent to each other.
Given:
The quadrilaterals ABCD and EFGH are shown in the figure below,
Figure
From figure
Calculation:
Consider the quadrilaterals,
ABCD and EFGH
From the given data, the two sides and two angles of quadrilaterals are congruent to each other
b)
To proof:
The quadrilaterals ABCD and EFGH are congruent, if two sides and three angles of quadrilaterals are congruent to each other.
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