Geometry Short Cycle Assessment #2

Question

find the perimeter of abc with vertices a(-3,-1).round your answer the nearest hundredth

Answer 1

Hi Cee H

Your question looks like it is missing some information and only partially posted. It also looks a lot a question from one of the Math learning sites like Brainly is this your question?

Find the perimeter of abc with vertices a(-3,3),b(3,-1), and c(-3,-1). round your answer to the nearest hundredth. the perimeter of abc is about.

If so you can use the distance between two points formula to find each side, ab, ac, and bc then add them together to find the perimeter.

Also if you draw your triangle above on a coordinate grid it is a Right Triangle with a side parallel to the y-axis and another side parallel to the x-axis you can count to the lengths of each side along the corresponding axis. For the Right triangle above, you can then use the Pythagorean Theorem to get the hypotenuse. Once you have all the sides just add them together to calculate the perimeter.

Answer 2

Hi Cee,

It seems like you are missing two of the vertices from the question. We need vertex b and c to accurately determine the perimeter.

If you want to try on your own this is a distance formula question.

Distance = ((x₂ - x₁)² + (y₂ - y₁)²)^1/2

First we want to find the distance between AB.

X₂ and Y₂ are the x-coordinate and y-coordinate for B.

X₁ and Y₁ are the x-coordinate and y-coordinate for A.

Please note the x^1/2 is the equivalent of the square root of x.

From here you can plug the numbers into the equation.

Now you have the distance from AB.

Follow the same procedure for BC and CA.

Add those three numbers together for your final answer of perimeter.