GEOMETRY
Section 6 – 3 Proving a Quadrilateral is a Parallelogram
Notes w/ 6-2 Review
SUMMARY of information from Section 6 – 2: Properties of Parallelograms
1. If a quadrilateral is a parallelogram, then ______________________________________

2. If a quadrilateral is a parallelogram, then ______________________________________

3. If a quadrilateral is a parallelogram, then ______________________________________

PRACTICE USING THAT INFORMATION:
1. Given the following figure is a parallelogram, find the indicated unknowns.
w = __________
x = __________
y = __________
z = __________
GEOMETRY
Section 6 – 3 Proving a Quadrilateral is a Parallelogram
Notes w/ 6-2 Review
2. Given the following figure is a parallelogram, find the indicated unknown.
x = __________
Section 6 –3: The CONVERSE STATEMENTS of Section 6 – 2
1. If a quadrilateral _______________________________________________, then
______________________________________

2. If a quadrilateral _______________________________________________, then
______________________________________

3. If a quadrilateral _______________________________________________, then
______________________________________

GEOMETRY
Section 6 – 3 Proving a Quadrilateral is a Parallelogram
Notes w/ 6-2 Review
PRACTICE USING THAT INFORMATION:
3.
State whether or not each of the following quadrilaterals is a parallelogram, then
give reasoning for why.
a)
YES IT IS
NO IT IS NOT
Why? ________________________________
_____________________________________
b)
YES IT IS
NO IT IS NOT
Why? ________________________________
_____________________________________
c)
YES IT IS
NO IT IS NOT
Why? ________________________________
_____________________________________
4. Use the below quadrilateral to answer the following questions;
a) Find the value of x.
x = __________
b) Is it a parallelogram?
YES
c) If so…why?
NO
GEOMETRY
Section 6 – 3 Proving a Quadrilateral is a Parallelogram
Notes w/ 6-2 Review
5. What values of x and y ensure that the following quadrilateral is a parallelogram?
x = __________
y = __________
6. What value of x ensures that the following quadrilateral is a parallelogram?
x = __________
7. What values of x and y ensure that the following quadrilateral is a parallelogram?
x = __________
y = __________