All ISEE Lower Level Math Resources
Example Questions
Example Question #21 : How To Find The Perimeter Of A Triangle
An equilateral triangle measures inches along its three equal sides. What is the perimeter of the triangle?
To find the perimeter of any object, simply add the length of each side together. The best answer is:
Example Question #345 : Plane Geometry
Find the perimeter of an equilateral triangle with a side of length 13cm.
To find the perimeter of a triangle, we use the following formula:
where a, b, and c are the lengths of the sides of the triangle.
So, given the triangle mentioned above, we know that it is an equilateral triangle. Because it is an equilateral triangle, we know that all the sides are equal. The problem says one side is 13cm. Therefore all sides are 13cm. Knowing that, we can substitute into the formula. We get
Example Question #21 : How To Find The Perimeter Of A Triangle
Find the perimeter of an equilateral triangle with a base of 8 inches.
To find the perimeter of a triangle, we use the following formula:
where a, b, and c are the lengths of the sides of the triangle.
We know the length of the base of the triangle is 8 inches. Because it is an equilateral triangle, we also know that all sides are equal. Therefore, all sides are 8 inches. Knowing this, we can substitute into the formula. We get
Example Question #72 : Triangles
Find the perimeter of an equilateral triangle with a base of 12 cm.
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, we know the base of the triangle is 12cm. Because it is an equilateral triangle, we know that all the sides are equal. In other words, all sides are 12cm. Knowing this, we can substitute into the formula. We get
Example Question #351 : Plane Geometry
Use the following 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 9 inches, 3 inches, and 10 inches. Knowing all of this, we can substitute into the formula. We get
Example Question #31 : How To Find The Perimeter Of A Triangle
What is the perimeter of an isosceles triangle with a base of and a side length of ?
Cannot determine
An isosceles triangle has a set of equal sides so the base is and the other two will be apiece.
The perimeter is all three sides added up so the perimeter will be
Example Question #31 : How To Find The Perimeter Of A Triangle
Find the perimeter of an equilateral triangle with a base of length 9 feet.
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, we know the base of the triangle has a length of 9 feet. Because it is an equilateral triangle, we know that all sides are equal. This means that all sides are 9 feet. Knowing this, we can substitute into the formula. We get
Example Question #71 : Triangles
Find the perimeter of an equilateral triangle with a base of 4 feet.
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, we know the base of the triangle is 4 feet. Because it is an equilateral triangle, we know that all sides are equal. Therefore, all sides are 4 feet. Knowing this, we can substitute into the formula. We get
Example Question #355 : Plane Geometry
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, let's look at the equilateral triangle.
We can see that one side has a length of 4ft. Because it is an equilateral triangle, all sides are equal. Therefore, all sides are 4ft.
Knowing this, we can substitute into the formula. We get
Example Question #72 : Triangles
Use the following triangle to solve the problem:
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, let's look at the triangle.
We can see the lengths of the sides are 9in, 3in, and 10in.
Knowing this, we can substitute into the formula. We get