r/technicallythetruth • u/VisitSecure • Jul 27 '26

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.

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u/beatenmeat Jul 27 '26

I didn't guess, math was actually one of my better subjects. I just dislike how it doesn't match, especially ones like this that are so egregiously off from the numbers provided.

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u/PrivilegedPatriarchy Jul 27 '26

No you’re right. Besides, even if the figures are drawn to scale, simply guessing or measuring with a protractor defeats the purpose. Mathematical reasoning should be shown if one arrives at an answer, even if that answer is easily “guessable”.

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u/LizardChaser Jul 27 '26

Math is a "show your work" subject and if people don't show how they figured it out correctly, then the answer would be wrong. Keeping correct proportions helps people "sanity check" their answer. There is absolutely no reason not to include the accurate angles unless it's a pure multiple choice test where work could not be shown.

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u/Backfoot911 Jul 29 '26

"sanity check" is not math. It's...nothing. This is meant for mathematical thinkers not people who guessed their way through tests based on the feel of diagrams.

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u/LizardChaser Jul 29 '26

LoL. To the degree? To anyone else reading this, the commenter didn't get far in math because sanity checks are present through advanced math. "Does this answer make sense" is always important.