The opposite angles of a quadrilateral are supplementary so you can set them equal to 180.
If there was more information given then i could find the exact values.
Hope this helps :)
Answer:
Step-by-step explanation:
Setting it up as a fraction will help us see the simplification process a bit easier.
a/a = 1, so they cancel each other out, leaving us with simply
Since we know what one side is, there is another side equal to how that side looks like. So, the long sides are 16.5 + 16.5 = 33. Therefore, (39.4 - 33) / 2 will get you your answer.
They are using the point (2, 8) to write this equation. You know that because of the "y-8" in the equation, and also because it's bolded! lol. Anyways, what's missing is the slope and the x value from our point. The slope is -2. Find this by picking 2 points on the line and putting those into the slope equation. Use the bolded point and the x-intercept: (2,8) and (6,0):
. As stated earlier the x coordinate in the bolded point is 2. So our equation is y-8=-2(x-2). And there you Go!