Three new Playstation video game systems cost $645. If all the game systems cost the same, what is the cost of each game system?

We devide 645$ in 3 parts

645/3=215$

3*215$=645$

A: Each of the game systems costs 215$

step-by-step explanation :

we know that

the measurement of the outer angle is the semi-difference of the arcs which comprises

in this problem

m< xzy is the outer angle

substitute the values

the measure of angle xoy is equal to

> by central angle

substitute the value