Match the one to one functions with their inverse functions

The radius of the circle is 4 cm and the measure of the central angle is 90° the area of the sector with a central angle measuring 90° and radius of length 4 cm is vt cm the triangle in the sector is 4 cm the area of the triangle is v/cm² the area of the segment of the circle is (471 - ) cm?

Which letters from the table represent like terms? a and b b and c a and d b and d

Me n o w. i need t h i s. 10 points