# How do I find the perimeter of the triangle with the vertices (-2,2), (0,4), (1,-4)?

The perimeter is the sum of all the lengths of the sides of the triangle.

So we have sides:

We can find the lengths of each side using the distance formula:

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When evaluating a one-sided limit, you need to be careful when a quantity is approaching zero since its sign is different depending on which way it is approaching zero from. Let us look at some examples.

When evaluating a one-sided limit, you need to be careful when a quantity is approaching zero since its sign is different depending on which way it is approaching zero from. Let us look at some examples.

When evaluating a one-sided limit, you need to be careful when a quantity is approaching zero since its sign is different depending on which way it is approaching zero from. Let us look at some examples.

- An ellipsoid has radii with lengths of #6 #, #5 #, and #9 #. A portion the size of a hemisphere with a radius of #6 # is removed form the ellipsoid. What is the remaining volume of the ellipsoid?
- A cone has a height of #16 cm# and its base has a radius of #5 cm#. If the cone is horizontally cut into two segments #12 cm# from the base, what would the surface area of the bottom segment be?
- A pyramid has a parallelogram shaped base and a peak directly above its center. Its base's sides have lengths of #2 # and #9 # and the pyramid's height is #2 #. If one of the base's corners has an angle of #(5pi)/6#, what is the pyramid's surface area?
- The base of a triangular pyramid is a triangle with corners at #(7 ,6 )#, #(4 ,3 )#, and #(1 ,8 )#. If the pyramid has a height of #6 #, what is the pyramid's volume?
- The base of a triangular pyramid is a triangle with corners at #(3 ,8 )#, #(4 ,2 )#, and #(9 ,8 )#. If the pyramid has a height of #4 #, what is the pyramid's volume?

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