Question

The vertices of (delta) XYZ are:

X: (-3, -6)
Y: (21, -6)
Z: (21, 4)

A. Find the coordinates of the midpoint of each side of the triangle.

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Answer 1

@Directrix

Answer 2

(delta) means triangle, yes? @Firejay5

Answer 3

Here's the midpoint formula. See attached.

Answer 4

Take the average of the coordinates.

Example:

X: (-3, -6) Y: (21, -6)

The midpoint of side XY of the triangle is [ (-3 +21)/2 , (-6 + (-6)) / 2] = (9,-6).

You can use the online midpoint calculator also.

http://easycalculation.com/analytical/mid-point.php

Answer 5

Delta means change

Answer 6

It does in a context such as slope. In the context of this problem, it is the symbol for triangle. That is the only way the problem makes sense.