NONE@lemmy.world to Lemmy Shitpost@lemmy.world · 4 months agoTo the center of the earth!📉lemmy.worldimagemessage-square3fedilinkarrow-up11arrow-down10
arrow-up11arrow-down1imageTo the center of the earth!📉lemmy.worldNONE@lemmy.world to Lemmy Shitpost@lemmy.world · 4 months agomessage-square3fedilink
minus-squarewieson@feddit.orglinkfedilinkarrow-up1·4 months agoIt’s even easier than going the triangle route. A four-corner shape always has 360° internally. So the internal angle of corner X is 360-(60+40+35). The exterior angle therefore is 360-360-(60+40+35) = 60+40+35 = 135
minus-squarebrown567@sh.itjust.workslinkfedilinkarrow-up1·4 months agoThat’s based on the assumption that the two angles in the middle add up to 180, which can’t be assumed by inspection alone as demonstrated by the visibly square 80° angle
It’s even easier than going the triangle route.
A four-corner shape always has 360° internally.
So the internal angle of corner X is 360-(60+40+35).
The exterior angle therefore is 360-360-(60+40+35) = 60+40+35 = 135
That’s based on the assumption that the two angles in the middle add up to 180, which can’t be assumed by inspection alone as demonstrated by the visibly square 80° angle