## Which figure is an example of a line segment?

Examples of line segments include the sides of a triangle or square. More generally, when both of the segment’s end points are vertices of a polygon or polyhedron, the line segment is either an edge (of that polygon or polyhedron) if they are adjacent vertices, or a diagonal.

## What is a line segment in your home?

A line segment is defined as the portion of a line that has two end points. They then continue to a second destination, such as a neighbor’s house, which is “Point B.” The walk from Point A to Point B represents a line segment.

## What is a real world example of a Ray?

An example of a ray is a sun ray in space; the sun is the endpoint, and the ray of light continues on indefinitely. In another example, a person hitting a tennis ball could cause it to travel in a ray if there were no resistance from the air; however, this can’t happen on earth due to friction.

## Where do you see lines in real life?

In real life, we see parallel lines in:

• Railway tracks.
• Four-way lanes, six-way lanes of roads.
• Opposite sides of blackboard and whiteboard.
• Opposite walls or doors in a room.
• Arrangement in a queue.

## What is the importance of angles?

Angles are important to defining and studying polygons such as triangles and quadrilaterals. They are used in a variety of disciplines, ranging from animation to carpentry to physics.

## What method of measuring angles besides degrees is used?

There are three units of measure for angles: revolutions, degrees, and radians. In trigonometry, radians are used most often, but it is important to be able to convert between any of the three units.

## What does 180 degrees look like?

A 180 degree appears like a straight line because the rays or the arms of the angle making 180 degrees are completely opposite to each other and the common point joining the lines makes half revolution that is angle 180 degree.

## How do you brush your teeth at 45 degrees?

The proper brushing technique is to:

1. Place your toothbrush at a 45-degree angle to the gums.
2. Gently move the brush back and forth in short (tooth-wide) strokes.
3. Brush the outer surfaces, the inner surfaces, and the chewing surfaces of the teeth.

## Are all angles equal in a rhombus?

A rhombus has all sides equal, while a rectangle has all angles equal. A rhombus has opposite angles equal, while a rectangle has opposite sides equal. The diagonals of a rhombus intersect at equal angles, while the diagonals of a rectangle are equal in length.

## What angles are equal in a rhombus?

They are congruent. Look at the bottom right angle and the top left angle: they are congruent. Opposite interior angles of a rhombus are congruent. The four interior angles of a rhombus always add up to 360°.

## Is point on line segment?

A line segment can be defined by two points pt1 and pt2 , each with an x and y coordinate. For example, if pt1 = (0,0) and pt2 = (5,5) , then the point (2,2) is on the line.

## What are the steps in constructing a line segment 3 steps?

Line Segment Bisector, Right Angle

1. Place the compass at one end of line segment.
2. Adjust the compass to slightly longer than half the line segment length.
3. Draw arcs above and below the line.
4. Keeping the same compass width, draw arcs from other end of line.
5. Place ruler where the arcs cross, and draw the line segment.

## Which point is collinear with A and C?

Two points are always collinear since we can draw a distinct (one) line through them. Three points are collinear if they lie on the same line. Points A, B, and C are not collinear. We can draw a line through A and B, A and C, and B and C but not a single line through all 3 points.

## Are points a C and E coplanar?

Below points A, F and B are collinear and points G and H are non collinear. Coplanar points are points all in one plane and non coplanar points are points that are not in the same plane. Below points B, C and E are coplanar, points D and A are coplanar but points E and D would not be coplanar.

## Can a line and a point be Noncoplanar?

Let’s break down the important terms as well when learning about coplanar lines: line: a set of points that extend on both sides infinitely. coplanar: when points or lines lie on the same plane, they are considered coplanar. noncoplanar: when points or lines do not lie on the same plane, they are considered noncoplanar.

## Can 2 planes intersect in a segment?

Two lines which are not coplanar cannot intersect and are called “skew” lines. Two planes which do not intersect are parallel. A line which does not lie in a plane either intersects that plane in a single point, or is parallel to the plane.

## What is something in real life that represents a line segment?

5. Line Segment: When a line has endpoints on both sides then it is called a line segment. Real-Life Examples: A pen. Edge of a paper.

RAY

• flashlights.
• arrow.
• projector.

## Which figure is a ray?

A ray is a part of a line that has one endpoint and goes on infinitely in only one direction. You cannot measure the length of a ray. A ray is named using its endpoint first, and then any other point on the ray (for example, →BA ).

## What is a ray line?

a ray is a line that has one endpoint and on one side it goes on forever. a line goes on forever in both directions. a line segment has two endpoints.

## How do you give another name for a ray?

Rays are commonly named in two ways:

1. By two points. In the figure at the top of the page, the ray would be called AB because starts at point A and passes through B on its way to infinity.
2. By a single letter. The ray above would be called simply “q”.

## Does every line contain a ray?

13. Does every line contain a ray? A- Yes, because a ray and a line both have arrows.

## What happens to the parallel lines?

Basic Properties of Parallel Lines Parallel lines never intersect. In the language of linear equations, this means that they have the same slope. In other words, for some change in the independent variable, each line will have identical change to each other in the dependent variable.