QUESTION 5
The opposite sides of a parallelogram are congruent.

Divide through by 4.

Or




QUESTION 6
The diagonals of a parallelogram bisect each other.

Divide both sides by 4;

Or




QUESTION 7
The alternate interior angles of a parallelogram are equal.

Group similar terms;

Simplify and solve for x.


QUESTION 8
The opposite angles of a parallelogram are congruent.

Group similar terms;

Simplify;

QUESTION 9
The height,
of this triangle can be determined using the absolute value method.
units.
The base,
can be determined using the absolute value method.
units.
The hypotenuse,
can be determined using the Pythagoras Theorem of distance formula;


units.
The three sides are unequal. This is a scalene triangle.
QUESTION 10
The base of the triangle is
units.
The altitude of this triangle bisects the base. This means the triangle is isosceles.
We can use the distance formula to confirm this.
The to hypotenuse is



units
The down hypotenuse is



units
QUESTION 11
This parallelogram has all sides congruent, 8 units each.
It is called a square.
A square fits the definition of a rhombus. All sides are equal.
This is a rhombus.
QUESTION 12
One side of the parallelogram is
units.
This is equal to the opposite side.
Another side is
units.
This is also equal to the opposites side.
All the sides of this parallelogram are not congruent.
The diagonals do not also meet at right angles.
The parallelogram is not a rhombus.