Question

If DB = 4 and DC = 6, find AD.

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3

Answer 1

if the triangles are similar you can use proportional sides rule.
\[DC/AD = DB/DB\]
Since DB is a side for both triangles. then substitute the lengths of the sides in the formula above, and solve for the missing sides like any normal equation.

Answer 2

like this
\[\frac{ 4 }{ 4 } = \frac{ 6 }{ x }\]
Solve for x and you will get the answe

Answer 3

theres only one triangle

Answer 4

in the picture there are 3 triangles actually.
Triangle ABD
Triangle BDC
Triangle ABC

Answer 5

if you have any other questions, just tag me and i'll help :)