Question

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

Explanation:

Step1: Total circle degrees

A full circle is $360^\circ$.

Step2: Sum known arcs

Add given arc measures: $59^\circ + 87^\circ + 85^\circ = 231^\circ$

Step3: Calculate $\overset{\frown}{AD}$

Subtract sum from $360^\circ$: $360^\circ - 231^\circ = 129^\circ$

Answer:

$129$