<span>Sum of Interior Angles = (Number of Sides -2) • 180 degrees
Sum = (19 -2) * 180
</span><span>Sum = 17 * 180
Sum of Degrees = 3,060
Source
http://www.1728.org/polygon.htm
</span>
Answer:
slope = 4
Step-by-step explanation:
According to the graphic the line passes through the two points A(-1 , 0) and B(0 , 4)

Answer:
206.17
Key(s):

Substitute <em>d</em> for the actual diameter, 7.5, and <em>h</em> for the height, which is 5.
Step-by-step explanation:
≈ 206.17(2 DP)
Answer:
it's B or D most likely D.
Answer:
Step-by-step explanation:
<em>m∠D</em> = 90° - 51° = <em>39°</em>
sin E =
⇒ DE = DF × sin E
<em>DE</em> = 18 sin51° ≈ <em>14.0 ft.</em>
cos E =
⇒ EF = DF × cos E
<em>EF</em> = 18 × cos51° ≈ <em>11.3 ft.</em>