SSAT Elementary Level Math : Lines
Study concepts, example questions & explanations for SSAT Elementary Level Math
All SSAT Elementary Level Math Resources
Example Questions
Example Question #663 : Plane Geometry
Find the length of a line connecting the points (1,3) and (7,8).
To solve, simply use the distance formula. Thus,
It is important to remember that with the distance formula, you must keep the order of x2-x1 and y2-y1 consistent. It doesn't matter which point you choose to be 2 and which one you choose to be 1, but once you do, you must keep it in that order for both instances.
Example Question #664 : Geometry
On a line segment, there are two points. One is at 
When dealing with a number line, the distance of a point is measured in its distance from 
To get the total distance you just add the two distances together
Example Question #665 : Geometry
Find the length of the line shown below:
In order to find the length of the line, you have to find the difference between the points.
The first point is 4, and the second point is 21.
therefore the length of the line is 
Example Question #11 : Lines
Find the average of the two endpoints to find their midpoint. To find the average of two numbers, add them together and divide by two.
Example Question #663 : Plane Geometry
How many lines of symmetry does a square have?
A line of symmetry is the imaginary line that you draw through a shape so that you can fold the image over the line and have both halves match exactly. Any regular shape has as many lines of symmetry as it does sides. Since a square has four sides, the correct answer is 4!
Example Question #12 : Lines
How many lines of symmetry does an octagon have?
A line of symmetry divides a shape into two equal and identical halves. Any regular shape has as many lines of symmetry as it does sides. Since octagons have eight sides, the correct answer is 8.
Example Question #13 : Lines
How many lines of symmetry does a rectangle have?
A line of symmetry is the imaginary line that you draw through a shape so that you can fold the image over the line and have both halves match exactly. Any regular shape has as many lines of symmetry as it does total sides. Since a rectangle has four sides, the correct answer is 4!
Example Question #4 : How To Find Symmetry Of A Line
The length of a certain line is 
Divide the length of the line by 2 to find the length of each half:
Example Question #2 : How To Find Symmetry
How many lines of symmetry does an octagon have?
A line of symmetry is the imaginary line that you draw through a shape so that you can fold the image over the line and have both halves match exactly. Any regular shape has as many lines of symmetry as it does sides. Since an octagon has eight sides, the correct answer is 
Example Question #671 : Plane Geometry
How many lines of symmetry does the figure have? This is not an equilateral triangle.
There is only one line of symmetry in this figure. It would be right down the middle. 
Certified Tutor
All SSAT Elementary Level Math Resources
