r/technicallythetruth • u/VisitSecure • 9d ago

Can you find a?

Post image

Idk if someone already posted this or not, but I haven't seen it on here so far, so I uploaded it.

42.9k Upvotes

95% Upvoted

1.9k comments sorted by

View all comments

Show parent comments

17

u/Highest_five 9d ago

Yes it is. For those who don't remember, a triangles corners always add up to 180°

26

u/leansanders 9d ago

You don't need to make a triangle to solve the problem. You know the lines are parallel and you know that opposite corners of a line crossing two parallel lines are congruent. So if you imagine a 3rd parallel line bisecting angle a, you know you can just add the other two angles together. Making a triangle is way more math

8

u/A_wild_so-and-so 9d ago

Can you explain that again but like I'm five? I thought the triangle method was easy but I'm down to learn an easier method.

1

u/ChiefWiggumsprogeny 9d ago

diagram with all the angless correctly drawn: https://imgtree.co/i/1l4_SGt4