Sjmarf@sh.itjust.works to People Twitter@sh.itjust.works · 16 hours agoThe value of xsh.itjust.worksimagemessage-square97fedilinkarrow-up1843arrow-down113
arrow-up1830arrow-down1imageThe value of xsh.itjust.worksSjmarf@sh.itjust.works to People Twitter@sh.itjust.works · 16 hours agomessage-square97fedilink
minus-squarebrisklinkfedilinkarrow-up9arrow-down1·10 hours agoThis is a standard way to draw geometric proofs, it’s not at all unreasonable to assume straight lines and unrepresentative angles.
minus-squareswitchboard_pete@fedia.iolinkfedilinkarrow-up3arrow-down1·9 hours agonormally in a geometric proof, a right angle is a right angle
minus-squarebrisklinkfedilinkarrow-up13·9 hours agoThis was certainly not my experience in high school. An unlabelled angle could never be assumed. Only angles marked with a square could be taken as right angles.
This is a standard way to draw geometric proofs, it’s not at all unreasonable to assume straight lines and unrepresentative angles.
normally in a geometric proof, a right angle is a right angle
This was certainly not my experience in high school. An unlabelled angle could never be assumed. Only angles marked with a square could be taken as right angles.
guess you’re right!