Abstract Algebra : Geometric Fields

Study concepts, example questions & explanations for Abstract Algebra

varsity tutors app store varsity tutors android store

Example Questions

Example Question #1 : Geometric Fields

Identify the following definition.

For some subfield of \(\displaystyle \mathbb{R}\), in the Euclidean plane \(\displaystyle \mathbb{R}^2\), the set of all points \(\displaystyle (x,y)\) that belong to that said subfield is called the __________.

Possible Answers:

Angle

Line

Plane

None of the answers.

Constructible Line

Correct answer:

Plane

Explanation:

By definition, when \(\displaystyle A\) is a subfield of \(\displaystyle \mathbb{R}\), in the Euclidean plane \(\displaystyle \mathbb{R}^2\), the set of all points \(\displaystyle (x,y)\) that belong to \(\displaystyle A\) is called the plane of \(\displaystyle A\).

Example Question #2 : Geometric Fields

Identify the following definition.

Given that \(\displaystyle A\) lives in the Euclidean plane \(\displaystyle \mathbb{R}^2\). Elements \(\displaystyle a\)\(\displaystyle b\), and \(\displaystyle c\) in the subfield \(\displaystyle A\) that form a straight line who's equation form is \(\displaystyle ax+by+c=0\), is known as a__________.

Possible Answers:

Subfield

Circle in \(\displaystyle A\)

Plane

Line in \(\displaystyle A\)

Angle

Correct answer:

Line in \(\displaystyle A\)

Explanation:

By definition, given that \(\displaystyle A\) lives in the Euclidean plane \(\displaystyle \mathbb{R}^2\). When elements \(\displaystyle a\)\(\displaystyle b\), and \(\displaystyle c\) in the subfield \(\displaystyle A\) , form a straight line who's equation form is \(\displaystyle ax+by+c=0\), is known as a line in \(\displaystyle A\).

Example Question #3 : Geometric Fields

Identify the following definition.

Given that \(\displaystyle A\) lives in the Euclidean plane \(\displaystyle \mathbb{R}^2\). Elements \(\displaystyle a\)\(\displaystyle b\), and \(\displaystyle c\) in the subfield \(\displaystyle A\) that form a straight line who's equation form is \(\displaystyle ax+by+c=0\), is known as a__________.

Possible Answers:

Subfield

Circle in \(\displaystyle A\)

Angle

Plane

Line in \(\displaystyle A\)

Correct answer:

Line in \(\displaystyle A\)

Explanation:

By definition, given that \(\displaystyle A\) lives in the Euclidean plane \(\displaystyle \mathbb{R}^2\). When elements \(\displaystyle a\)\(\displaystyle b\), and \(\displaystyle c\) in the subfield \(\displaystyle A\) , form a straight line who's equation form is \(\displaystyle ax+by+c=0\), is known as a line in \(\displaystyle A\).

Example Question #4 : Geometric Fields

Identify the following definition.

If a line segment has length \(\displaystyle |a|\) and is constructed using a straightedge and compass, then the real number \(\displaystyle a\) is a __________.

Possible Answers:

Angle

Plane

Magnitude

Straight Line

Constructible Number 

Correct answer:

Constructible Number 

Explanation:

By definition if a line segment has length \(\displaystyle |a|\) and it is constructed using a straightedge and compass then the real number \(\displaystyle a\) is a known as a constructible number.

Learning Tools by Varsity Tutors