### All Common Core: High School - Geometry Resources

## Example Questions

### Example Question #1 : Prove Parallelogram Theorems: Ccss.Math.Content.Hsg Co.C.11

What is known if is said to be a parallelogram?

**Possible Answers:**

All of the other answers are correct.

Opposite side lengths are parallel.

is a quadrilateral.

**Correct answer:**

All of the other answers are correct.

A parallelogram is a special type of quadrilateral meaning, it is a shape that has four sides with opposite sides being parallel.

Drawing the parallelogram can be done as follows.

Looking at the image it can be said that,

and .

Therefore, all of the possible answer choices are correct.

### Example Question #2 : Prove Parallelogram Theorems: Ccss.Math.Content.Hsg Co.C.11

Which of the following helps prove an image is a parallelogram?

**Possible Answers:**

One Set of Parallel Lines

None of the other answers.

Two Lines must be Perpendicular

Congruent Opposite Angles

Angles that Exceed

**Correct answer:**

Congruent Opposite Angles

A parallelogram is a special type of quadrilateral meaning, it is a shape that has four sides with opposite sides being parallel. Along with opposite sides being congruent, a parallelogram has two pairs of opposite angles that are congruent. Lastly, the diagonals of a parallelogram must bisect each other.

### Example Question #3 : Prove Parallelogram Theorems: Ccss.Math.Content.Hsg Co.C.11

Which of the following helps prove an image is a parallelogram?

**Possible Answers:**

None of the other answers

Bisecting Diagonals

One Set of Parallel Lines

Angles that Exceed

Two Lines must be Perpendicular

**Correct answer:**

Bisecting Diagonals

A parallelogram is a special type of quadrilateral meaning, it is a shape that has four sides with opposite sides being parallel. Along with opposite sides being congruent, a parallelogram has two pairs of opposite angles that are congruent. Lastly, the diagonals of a parallelogram must bisect each other.

### Example Question #4 : Prove Parallelogram Theorems: Ccss.Math.Content.Hsg Co.C.11

Which of the following helps prove an image is a parallelogram?

**Possible Answers:**

Two Sets of Opposite Parallel Lines

Two Lines must be Perpendicular

All of the answers are correct

Angles that Exceed

One Set of Parallel Lines

**Correct answer:**

Two Sets of Opposite Parallel Lines

A parallelogram is a special type of quadrilateral meaning, it is a shape that has four sides with opposite sides being parallel. Along with opposite sides being congruent, a parallelogram has two pairs of opposite angles that are congruent. Lastly, the diagonals of a parallelogram must bisect each other.

### Example Question #1 : Prove Parallelogram Theorems: Ccss.Math.Content.Hsg Co.C.11

Determine whether the statement is true or false:

A rhombus is an example of a parallelogram.

**Possible Answers:**

False

True

**Correct answer:**

True

Recall that a parallelogram is a special type of quadrilateral meaning, it is a shape that has four sides with opposite sides being parallel. Along with opposite sides being congruent, a parallelogram has two pairs of opposite angles that are congruent. Lastly, the diagonals of a parallelogram must bisect each other. Since a rhombus has all of these characteristics it too is considered a parallelogram.

Therefore, the statement is true.

### Example Question #2 : Prove Parallelogram Theorems: Ccss.Math.Content.Hsg Co.C.11

Determine whether the statement is true or false:

A trapezoid is a parallelogram.

**Possible Answers:**

False

True

**Correct answer:**

False

Recall that a parallelogram is a special type of quadrilateral meaning, it is a shape that has four sides with opposite sides being parallel. Along with opposite sides being congruent, a parallelogram has two pairs of opposite angles that are congruent. Lastly, the diagonals of a parallelogram must bisect each other.

A trapezoid has one set of opposite parallel sides however, they are not congruent. The opposite angles of a trapezoid are also not congruent therefore, the statement is false.

### Example Question #5 : Prove Parallelogram Theorems: Ccss.Math.Content.Hsg Co.C.11

Determine whether the statement is true or false:

A quadrilateral has therefore, is a parallelogram.

**Possible Answers:**

True

False

**Correct answer:**

False

Recall that a parallelogram is a special type of quadrilateral meaning, it is a shape that has four sides with opposite sides being parallel. Along with opposite sides being congruent, a parallelogram has two pairs of opposite angles that are congruent. Lastly, the diagonals of a parallelogram must bisect each other.

Since the statement only says that is an quadrilateral that has . This does not give enough information. A trapezoid has one pair of parallel sides but is not a parallelogram, therefore the statement, "A quadrilateral has therefore, is a parallelogram." is false.

### Example Question #6 : Prove Parallelogram Theorems: Ccss.Math.Content.Hsg Co.C.11

Determine whether the statement is true or false:

In the figure , , , , and opposite side lengths are congruent, therefore is a parallelogram.

**Possible Answers:**

True

False

**Correct answer:**

True

Recall that a parallelogram is a special type of quadrilateral meaning, it is a shape that has four sides with opposite sides being parallel and congruent. Along with opposite sides being congruent, a parallelogram has two pairs of opposite angles that are congruent. Lastly, the diagonals of a parallelogram must bisect each other.

Since the angles given represent those in a parallelogram, and the opposite sides are congruent, that makes the figure a parallelogram.

Therefore, the statement is true.

### Example Question #3 : Prove Parallelogram Theorems: Ccss.Math.Content.Hsg Co.C.11

Determine whether the statement is true or false.

Bisecting a parallelogram along one of its diagonals creates two congruent triangles.

**Possible Answers:**

True

False

**Correct answer:**

True

Given the statement:

"Bisecting a parallelogram along one of its diagonal creates two congruent triangles."

Recall that a parallelogram is a special type of quadrilateral meaning, it is a shape that has four sides with opposite sides being parallel. Along with opposite sides being congruent, a parallelogram has two pairs of opposite angles that are congruent. Lastly, the diagonals of a parallelogram must bisect each other. When a parallelogram is bisected along one of its diagonals it in fact creates two congruent triangles.

Therefore, the statement is true.

### Example Question #4 : Prove Parallelogram Theorems: Ccss.Math.Content.Hsg Co.C.11

Determine whether the statement is true or false:

To determine whether a figure is a parallelogram, you only need information on one pair of sides or one pair of angles.

**Possible Answers:**

True

False

**Correct answer:**

False

Recall that a parallelogram is a special type of quadrilateral meaning, it is a shape that has four sides with opposite sides being parallel. Along with opposite sides being congruent, a parallelogram has two pairs of opposite angles that are congruent. Lastly, the diagonals of a parallelogram must bisect each other.

Since the statement gives one pair of sides and one pair of angles but does not specify whether the pairs are opposite it cannot be determined whether the figure is a parallelogram or not.