Sjmarf to People Twitter@sh.itjust.works • 22 hours agoThe value of xsh.itjust.worksimagemessage-square113fedilinkarrow-up1986arrow-down119
arrow-up1967arrow-down1imageThe value of xsh.itjust.worksSjmarf to People Twitter@sh.itjust.works • 22 hours agomessage-square113fedilink
minus-squareswitchboard_petelinkfedilink11•18 hours agothe answers here assume that the base is a continuous, straight line given one of the angles on the left triangle is a right angle on the diagram, but 80 if you calculate it, you can’t assume that
minus-square@brisk@aussie.zonelinkfedilink9•16 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_petelinkfedilink2•15 hours agonormally in a geometric proof, a right angle is a right angle
minus-square@brisk@aussie.zonelinkfedilink15•15 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.
the answers here assume that the base is a continuous, straight line
given one of the angles on the left triangle is a right angle on the diagram, but 80 if you calculate it, you can’t assume that
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!