Find the unit measure of ADI need help with this

RRB asked Oct 11, 2023

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RRB asked Oct 11, 2023

by RRB

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From properties of lines inscribed in circles we will have that:

$\begin{gathered} AD+DB=AB:AD=DB \\ \\ \Rightarrow2AD=AB\Rightarrow AD=(AB)/(2) \\ \\ \Rightarrow AD=(60)/(2)\Rightarrow AD=30 \end{gathered}$

So, the measure of AD is 30 units.

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