Question

figure cdef is a parallelogram. which equations are correct? select three options. n = 10 n = 7 cf = 59 fe = 42 cd = 30

Explanation:

Step1: Opposite sides of parallelogram are equal.

DE = CF, CD = FE

Step2: Set DE = CF to solve n.

5n + 9 = 6n - 1 → n = 10

Step3: Calculate CD and FE.

CD = 4n + 2 = 4×10 + 2 = 42, FE = CD = 42

Step4: Calculate CF.

CF = 6n - 1 = 6×10 - 1 = 59

Answer:

A. n = 10, C. CF = 59, D. FE = 42