Question

Zach wanted to prove that the arcs on a railroad crossing symbol did not each equal90°. He drew an inscribed angle A with arc BC as the intercepted arc. Angle Ameasured 35°. Fill in the blank with the measure of the intercepted arc.BmBC =RXR35°A

Answer 1

The given problem can be exemplified in the following diagram:

In this case the value of angle "x" is 35 degrees, therefore, the measure of arc BC is double this angle, that is:

$\begin{gathered} \text{mBC}=35\times2 \\ mBC=70 \end{gathered}$