People Twitter

5383 readers

944 users here now

People tweeting stuff. We allow tweets from anyone.

RULES:

Mark NSFW content.
No doxxing people.
Must be a tweet or similar
No bullying or international politcs
Be excellent to each other.
Provide an archived link to the tweet (or similar) being shown if it's a major figure or a politician.

founded 2 years ago

MODERATORS

1098

The value of x (sh.itjust.works)

submitted 2 months ago by [email protected] to c/[email protected]

137 comments fedilink hide all child comments

you are viewing a single comment's thread
view the rest of the comments

[–] [email protected] 2 points 2 months ago (2 children)

I think 125

[–] [email protected] 22 points 2 months ago (2 children)

135, that's not a 90 degree angle in the problem. Just visually.

[–] [email protected] 6 points 2 months ago

Oh that's just a cheap trick. You are right, it's 80 degrees despite looking like 90 degrees.

[–] [email protected] 0 points 2 months ago

You are right that is 80° so the value of x will be 135°

[–] [email protected] 8 points 2 months ago* (last edited 2 months ago) (1 children)

Nah, the imagery tricks you. 180 degrees to a line. 180 degrees inside a triangle.

So you can gather the inside unlabeled angle on the triangle on the left is only 80 degrees: (180-[60+40])

So you then know it's 100 on the right side of that +35 leaves you with 45 degrees left for the top of the right one.

180-45=. 135 degrees

[–] [email protected] 6 points 2 months ago

Also if you add up all visible angles you get 135, so I'm sold on that alone. No no no, I won't hear any rebuttals.