1 Answer

Gleno · Answer 1 · 2023-04-16T20:35:08+0000

Using the geometric mean theorem,

$(y)/(14.4)=(14.4)/(19.2) \\ \\ y=10.8$

Using Pythagoras on triangle
ABD ,

x=√(14.4^2+10.8^2)=18

Triangles
ABD and [ted]CBD[/tex] are similar because corresponding angles are congruent and pairs of corresponding sides have proportional lengths.

To determine this, use the complementary angles.

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