1 Answer

Tarnisha · Answer 1 · 2023-09-15T09:33:08+0000

itsThe quadrilateral is a parallelogram

A parallelogram has it's opposite sides to be parallel and equal in length

Hence:

$\begin{gathered} 16\text{ + 2x = 10 + 8x} \\ \operatorname{Re}-\text{arranging} \\ 6\text{ = 6x} \\ x\text{ = 1} \end{gathered}$

Then to obtain BC, we simply substitute:

$\begin{gathered} BC\text{ = 16 + 2x } \\ =\text{ 16 + 2(1)} \\ =\text{ 18} \end{gathered}$

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