2 years ago

Solve for y. Please help!!

Mathematics

1 answer:

Nadya [2.5K]2 years ago

7 0

Answer:

$y=3\sqrt{7}\ units$

Step-by-step explanation:

see the attached figure with letters to better understand the problem

we know that

In the right triangle ABD

$tan($

In the right triangle BCD

$tan($

remember that

m< BAD=m<CBD

therefore

$tan($

equate the equations

$y/9=7/y$

$y^{2}=63$

$y=3\sqrt{7}\ units$

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