Question

what is $mwidehat{ik}$?
$mwidehat{ik} = \square ^\circ$
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Explanation:

Step1: Total circle degrees is 360°

The sum of all arcs in a circle is $360^\circ$.

Step2: Sum known arcs

Add the given arc measures: $90^\circ + 130^\circ = 220^\circ$

Step3: Calculate remaining arc $\overset{\frown}{IK}$

Subtract sum from total: $360^\circ - 220^\circ = 140^\circ$

Answer:

$140$