can a triangle have one obtuse angle and one right angle??

Question

jim_thompson5910 · Answer

No it cannot. If a triangle has one right angle, then the other 2 angles must be acute.

If you had 2 right angles, then they'd add to 90+90 = 180, but there's no room for the third angle. The third angle would have to be 0 degrees.

anonymous · Answer

Okay i under stand but not the last part

jim_thompson5910 · Answer

All 3 angles of a triangle must add to 180 degrees

anonymous · Answer

okay

jim_thompson5910 · Answer

If you had 2 right angles and one other missing angle, call it x, then 

90+90+x = 180

solving for x gives you 

x = 0

jim_thompson5910 · Answer

but that's not a possible triangle construction to have an angle of 0 degrees

jim_thompson5910 · Answer

so that's why if you have one right angle, then the other angles must be smaller than 90 degrees

anonymous · Answer

okay i get it now thanks

jim_thompson5910 · Answer

you're welcome

anonymous · Answer

bye