Mathematics
5 Online
OpenStudy (anonymous):
Find the measure of angle 1.
A) 30 degrees
B) 15 degrees
C) 45 degrees
D) 60 degrees
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OpenStudy (anonymous):
OpenStudy (littlebird):
Brb, I'm getting something to draw with
OpenStudy (anonymous):
Okie
OpenStudy (littlebird):
OpenStudy (littlebird):
I started this knowing hexagon's angles total 720 degrees
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OpenStudy (littlebird):
So each individual angle is 120 degrees
OpenStudy (littlebird):
Angle 3 is half of one of the hexagons corners, so it is 60 degrees
OpenStudy (littlebird):
Angle 3 is part of a right triangle, and with it being 60 degrees....
OpenStudy (littlebird):
We have a 30-60-90 triangle (180 degrees in a triangle)
OpenStudy (littlebird):
In other words, angle 2 is 30 degrees.
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OpenStudy (littlebird):
OpenStudy (littlebird):
Angle 2 is half of the top angle in the triangle highlighted in black
OpenStudy (littlebird):
So the angle at the top of the black traingle is 60 degrees
OpenStudy (littlebird):
Hexagons are consistent, so all of its angles around the center are the same size
OpenStudy (littlebird):
Angle 1 is 60 degrees
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OpenStudy (littlebird):
One day this thought process will take a few seconds
OpenStudy (anonymous):
So therefore angle 1 equals to 60 degrees?
OpenStudy (littlebird):
Yes
OpenStudy (anonymous):
Thanks. :)