If it was to scale you could just use a protractor and skip the whole math part, which is the entire part of the lesson…
Comment on To the center of the earth!📉
Coskii@lemmy.blahaj.zone 2 months ago
I hated pictures like this in school. The numbers are just slapped on an inaccurate image and somehow they expect people to ignore the obvious right triangles and just focus on the math part of it.
SchmidtGenetics@lemmy.world 2 months ago
Coskii@lemmy.blahaj.zone 2 months ago
I don’t see that as a downside as long as these two questions are also included.
How many degrees make up the inner angles of a triangle?
How many degrees make up one side of a straight line?
Maalus@lemmy.world 2 months ago
Big assumption that the bottom line is straight / not two lines connecting at a different angle
Pacattack57@lemmy.world 2 months ago
And what’s wrong with that. Utilizing real world solutions to problems is a life skill. Not some obscure formula that you will forget anyway.
rockerface@lemm.ee 2 months ago
Adding and subtracting is a real life solution. Not sure how that is “obscure”
Pacattack57@lemmy.world 2 months ago
You are being obtuse. You know what I mean by obscure.
elxeno@lemm.ee 2 months ago
Then they could use decimals so it’s unlikely to get it right without calculating, 60.17°, 40.29°, 35.43°
explodicle@sh.itjust.works 2 months ago
If the student eventually does geometry for money, they’ll discover that customer CAD files invariably have some bizarre error like this.
nul9o9@lemmy.world 2 months ago
I was scared I forgot basic trig stuff.
CaptainBasculin@lemmy.ml 2 months ago
Fun fact: In Turkey’s university admittance exam, all angles have to be absolutely accurate, and measurements have to be scaled down perfectly to the visible shape in a geometry question.
Enkers@sh.itjust.works 2 months ago
To what tolerance, though? Writing math exams has now become an engineering problem.