Geometry help needed
i know some of them but the others i dont know their places
@Vocaloid
5 <B = <B is simply stating that something is equal to itself, so reflexive property of congruence 6 small triangle BCD is similar to CAD since they share the angle B and a 90 degree angle (I think that's what they're going for at least) 7 hypotenuse/leg = hypotenuse/leg for the big triangle and small triangle, so polygon similarity postulate 8 is a result from cross-multiplying 7 9 both the angles given are right angles, so all right angles are congruent 10 same thing as 5 since 11 this got cut off from the diagram 12 another hypotenuse/leg situation, see 7 13 cross multiplying, same logic as 8 14 they're adding cx to one side and a^2 to the other side since a^2 = cx so addition property of equality 15 I really don't know what they want for 15, maybe a^2 + b^2 = c(x+y) since this is the distributive property in reverse 16 is a natural result of the segment addition postulate since c is equal to x + y 17 they are taking a^2 + b^2 = c(x+y) and replacing (x+y) with c, so substitution property of equality
OMG I CANT THANK YOU ENOUGH !!
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