stuck between two choices , can you help?

Question

word2 · Answer

What property or definition is needed to prove that ΔMPN is similar to ΔNPO? 

Question 7 options:
	
1) 	Transitive Property of Equality
	
2) 	Reflexive Property of Equality
	
3) 	Definition of an Altitude
	
4) 	Definition of Supplementary Angles


its either 3 or 4 but i was leaning more towards number three

anonymous · Answer

Maybe what is it

word2 · Answer

geometry , i thought it was C buut i'm not sure.

anonymous · Answer

Send me a pi

anonymous · Answer

Sorry picture

word2 · Answer

attachment

anonymous · Answer

First figure out what the all represent

word2 · Answer

:/  can you just tell me if i'm right or wrong?

word2 · Answer

@samuel_1072

anonymous · Answer

Idk I need a chart of what the # equal I can help but not till then

word2 · Answer

it doesn't equal to anything :/ . okay i'll just go with #3

anonymous · Answer

Ha ur right just checked I'm a derp

word2 · Answer

yep i was right .