Can someone me with the last two questions?

Jennifer is visiting her grandmother, who lives in the northeast corner of oklahoma. the region is home to many lakes, and jennifer enjoys canoeing on the illinois and grand rivers. to which region of oklahoma is she traveling? the prairie plains, the ozark plateau, the red river plains, the red beds plains

Concealer circle oh in which arc xy measures 16 pi centimeters the length of the radius of the circle is 32 cm what is the circumference of the circle

Match the letters with the correct terms