You are a lifeguard at a community pool, and you are in charge of maintaining the proper ph (amount of acidity) and chlorine levels. the water test kit says that the ph level should be between 7.4 and 7.6 ph units and the chlorine level should be between 1.0 and 1.5 ppm

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

hope this is what you were asking for!

step-by-step explanation: