Answer:
6.4in (C)
Explanation:
Find attached the diagram gotten from the information.
∠PQR = 72°
∠XYZ = 36°
PQ = PR = 2.5in
XY = 1.4in
To determine the perimeter of ΔXYZ, we would sum the sides of all the triangles together.
Since Triangles Q R P and X Y Z are congruent.
ZY = PR = 2.5in
ZX= PQ = 2.5in
Perimeter of ΔXYZ = ZX+ XY + ZY
Perimeter of ΔXYZ = 2.5in +1.4in +2.5in
Perimeter of ΔXYZ = 6.4in (C)