Jazmin M.

asked • 08/05/20

can you help me because i don't understand

Given: ∠ADB≅∠CDB.

Prove: △ADB is a right triangle.

Step Statement Reason
1 ∠ADB≅∠CDB Given

try Type of Statement ?


Mark M.

More information about the two triangles is needed to prove ABD is a right triangle.
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08/05/20

William W.

Jazmin, Is there a picture of triangle that shows more information about the triangles that you could share?
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08/05/20

Stanton D.

In general, ADB won't be a right triangle, unless CDB is. DB can be shared, with A and C on "opposite" sides of that segment -- in fact, the midpoint of AC will bisect DB. I also note that the triangles could even be similar, with DB serving as the longest leg of one triangle, and as the second-longest leg of the other, without requiring a right angle anywhere. -- Cheers, -- Mr. d.
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08/06/20

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