Penn draws a triangle with one 90° angle. What could be the measures of the other two angles in Penn's triangle?

1 Answer
Mark D.
Jul 30, 2018

The total number of degrees in a triangle is 180. If you have an angle of 90 already drawn then the remaining two angles must add up to 90. So you could have #30^@ and 60^@# or #1^@ and 89^@# or #22.5^@ and 67.5^@#

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