https://app37.studyisland.com/pics/160006question1.png Given trapezoid WXYZ shown above, determine how triangles WXZ and XZY can be shown to be similar. Since XZW ZYX and WXZ XZY, the triangles are similar by angle-angle. Since XZW ZYX and XZ = WZ, the triangles are similar by angle-side. Since XZW ZYX and WXZ YXZ, the triangles are similar by angle-angle. Since XZW ZYX and XZ = ZX, the triangles are similar by angle-side.
@chycora
i'll help but fyi i'm in the 7th
okay
k
@confluxepic
i think it's either Since XZW ZYX and XZ = WZ, the triangles are similar by angle-side. or Since XZW ZYX and XZ = ZX, the triangles are similar by angle-side. hope i helped
|dw:1428100725789:dw|
Since we have a trapezoid, by definition, the two sides marked above, ZY and WX, are parallel. Also, we are given angles 1 and 2 are right angles.
All right angles are congruent, so angles 1 and 2 are congruent. That is one pair of corresponding angles that are congruent.
|dw:1428100915664:dw|
Lines ZY and WX are parallel lines. Line XZ is a transversal. Angles 3 and 4 are alternate interior angles, and therefore congruent. That is a second pair of corresponding congruent angles. By angle-angle, the triangles are similar.
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