## Elementary Geometry for College Students (5th Edition)

m$\angle$A=72$^{\circ}$
as stated in question 2 that both the triangles are congurrent means two angles of both the triangles are equal. and according to both the triangles $\angle$A=$\angle$F and it is given in question 3 that m$\angle$F=72$^{\circ}$ therefore, m$\angle$A=72$^{\circ}$