In circle P shown the measure of pqrs is 20 degrees what is the measure of p r s​

I think its A or B

Step-by-step explanation:

Good luck doe

c

c

c

c

c

c

c

cc

c

step-by-step explanation:

step-by-step explanation:

one of the most important purposes of surface treatment is to alter surface properties according to the requirement of specific applications. for example, hydrophobic coating has been utilized on windshield and eyeglasses. gold atom monolayer on substrate has become a popular surface bioconjugation strategy.