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Gabylovesyou
 2 years ago
What statement is needed to prove that ΔABC is similar to ΔDBA?
Segment BC is a hypotenuse.
Angle B is congruent to itself.
Segment BA is shorter than segment BC.
Segment BC is intersected by segment AD.
Gabylovesyou
 2 years ago
What statement is needed to prove that ΔABC is similar to ΔDBA? Segment BC is a hypotenuse. Angle B is congruent to itself. Segment BA is shorter than segment BC. Segment BC is intersected by segment AD.

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Gabylovesyou
 2 years ago
Best ResponseYou've already chosen the best response.1@phi i think its D

phi
 2 years ago
Best ResponseYou've already chosen the best response.0this problem looks like it has a typo. we need to know the smaller triangle has a right angle. Segment BC is intersected by segment AD. is not enough we need to know BC is perpendicular to AD.

Gabylovesyou
 2 years ago
Best ResponseYou've already chosen the best response.1whats hypotenuse ?

phi
 2 years ago
Best ResponseYou've already chosen the best response.0hypotenuse is the longest side of a right triangle. telling us BC is a hypotenuse is not new info because they tell us angle CAB (marked with the little box) is a right angle, which makes BC a hypotenuse if (but the did not) tell us AB was a hypotenuse, we could use that ...

Gabylovesyou
 2 years ago
Best ResponseYou've already chosen the best response.1so is the answer B ?

phi
 2 years ago
Best ResponseYou've already chosen the best response.0no. I think there is a problem with this question. None of the choices allow us to prove the triangles are similar.

Gabylovesyou
 2 years ago
Best ResponseYou've already chosen the best response.1in order to solve it you dont need any of those statements AT ALL ?

phi
 2 years ago
Best ResponseYou've already chosen the best response.0we do need to know that angle ADB = 90º we would know that if they told us 1) angle ADB is a right angle, or 2) side AB is a hypotenuse, or 3) AD is perpendicular to BC but they did not... so there is a problem with this question. Ask your teacher about it.

phi
 2 years ago
Best ResponseYou've already chosen the best response.0to make it more clear. the big triangle ABC has a right angle in it (we know because they mark angle BAC with a little square) if we draw the little triangle like this dw:1396302963812:dw
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