GED Math : 2-Dimensional Geometry
Study concepts, example questions & explanations for GED Math
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Example Questions
Example Question #191 : Geometry And Graphs
Use the following triangle to answer the question:
Find the perimeter.
To find the perimeter of a triangle, we will use the following formula:
where a, b, and c are the lengths of the sides of the triangle.
Now, given the triangle
we can see it has lengths of 9in, 3in, and 10in. Knowing this, we can substitute into the formula. We get
Example Question #192 : Geometry And Graphs
Use the following triangle to answer the question:
Find the perimeter.
To find the perimeter of a triangle, we will use the following formula:
where a, b, and c are the lengths of the sides of the triangle.
So, given the following triangle
we can see it has sides of length 8cm, 4cm, and 6cm. So, we can substitute. We get
Example Question #191 : Geometry And Graphs
Find the perimeter of a triangle if the side length is 
The triangle is not specified whether if it is an isosceles, right triangle, or equilateral triangle.
We only can conclude that there's only one known side. There is insufficient information to find the total perimeter of the triangle.
The answer is:
Example Question #192 : Geometry And Graphs
If the side of an equilateral triangle is 
The perimeter of an equilateral triangle is three times the given side length, since all three sides are congruent.
Multiply the known side by three.
Simplify the inner terms.
The answer is:
Example Question #193 : Geometry And Graphs
Use the following triangle to answer the question:
Find the perimeter.
To find the perimeter of a triangle, we will use the following formula:
where a, b, and c are the lengths of the sides of the triangle.
Now, given the triangle
we can see it has sides with lengths of 10ft, 6ft, and 12ft. So, we can substitute. We get
Example Question #194 : Geometry And Graphs
Determine the perimeter if a known side of a triangle is 
The perimeter of an equilateral triangle would be known, but the type of triangle is unknown in the problem statement.
The perimeter of a triangle requires three known sides. Since only one side is given, we do not have enough information to determine the perimeter.
The answer is:
Example Question #192 : Geometry And Graphs
Use the following triangle to answer the question:
Find the perimeter.
To find the perimeter of a triangle, we will use the following formula:
where a, b, and c are the lengths of the sides of the triangle.
Now, given the triangle
we can see it has sides with lengths 10ft, 6ft, and 12ft. So, we can substitute. We get
Example Question #1163 : Ged Math
Use the following equilateral triangle to answer the question:
Find the perimeter.
To find the perimeter of a triangle, we will use the following formula:
where a, b, and c are the lengths of the sides of the triangle.
Now, given the triangle
we can see one side is 4ft. Because it is an equilateral triangle, all sides are equal. Therefore, all sides are 4ft. So, we can substitute. We get
Example Question #21 : Perimeter And Sides Of Triangles
Find the perimeter of a equilateral triangle with a base of 13cm.
To find the perimeter of an equilateral triangle, we will use the following formula:
where a is any side of the equilateral triangle. Because an equilateral triangle has 3 equal sides, we are able to use any side in the formula.
Now, we know the base of the equilateral triangle is 13cm. So, we can substitute. We get
Example Question #195 : Geometry And Graphs
If an equilateral triangle has a side length of 
All three sides of an equilateral triangle are equal.
We will need to multiply the side length by three.
The answer is:
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