### All Pre-Algebra Resources

## Example Questions

### Example Question #21 : Perimeter Of A Triangle

An equilateral triangle measures inches along its three equal sides. What is the area of the triangle?

**Possible Answers:**

inches

inches

inches

inches

inches

**Correct answer:**

inches

To find the perimeter of any object, simply add the length of each side together. The best answer is:

inches

### Example Question #22 : Perimeter Of A Triangle

An isosceles triangle measures inches along its two equal sides, and inches along its third side. What is the area of the triangle?

**Possible Answers:**

inches

inches

inches

inches

inches

**Correct answer:**

inches

To find the perimeter of any object, simply add the length of each side together. The best answer is:

inches

### Example Question #21 : Perimeter Of A Triangle

An equilateral triangle measures inches along its three equal sides. What is the area of the triangle?

**Possible Answers:**

inches

inches

inches

inches

inches

**Correct answer:**

inches

To find the perimeter of any object, simply add the length of each side together. The best answer is:

inches

### Example Question #342 : Geometry

What is the perimeter of an equillateral triangle with side of length 5.5cm?

**Possible Answers:**

**Correct answer:**

The formula to find the perimeter of a triangle is

where *a, b*, and *c* are the sides of the triangle. We know that one side of the triangle is 5.5cm. We also know that an equillateral triangle has 3 equal sides. Therefore, all sides are 5.5cm. Using that information, we can substitute into the formula. We get

Note that we do not combine the labels, only the coefficients.

### Example Question #341 : Geometry

What is the perimeter of an equilateral triangle with a base of 6 feet?

**Possible Answers:**

Cannot be determined from the information provided

**Correct answer:**

What is the perimeter of an equilateral triangle with a base of 6 feet?

Perimeter is simply the distance around the outside of a shape.

We are asked to find the perimeter of an equilateral triangle. In other words, the three sides must be the same length. In other words, we have three sides, each 6 feet long.

So our answer is 18ft.

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