The circles with the centre at P and Q are such that each passes through the centre of the other. the circle intersect at points R and S as shown what is the measure of ∠PRQ

a.45⁰
b.50⁰
c.60⁰
d.90⁰​

What is the volume of a cardboard box that measures 1 inch by 5 inches by 7 inches? the volume of the cardboard is cubic inches. enter your answer as the number that correctly fills in the blank in the previous sentence. if necessary, round your answer to the nearest tenth, like this: 42.5