Question

find ( moverarc{ad} ).
( moverarc{ad} = square^circ )

Explanation:

Step1: Recall total circle degrees

A full circle is $360^\circ$.

Step2: Sum known arc measures

Add given arcs: $90^\circ + 60^\circ + 140^\circ = 290^\circ$

Step3: Solve for $\overset{\frown}{AD}$

Subtract sum from $360^\circ$: $360^\circ - 290^\circ = 70^\circ$

Answer:

$70$