Question

What is the perimeter of the parallelogram in the below image (in units)?
6b + 2a
9 + 2a
4a - 3
10b

Answer 1

$\textsf{Perimeter of a Parallelogram = Sum of all Sides}$

$\implies\textsf{Perimeter of a Parallelogram} \sf{= \left(6b+2a\right)+\left(4a-3\right)+\left(10b\right)+\left(9+2a\right)}$

$\implies\textsf{Perimeter of a Parallelogram} \sf{=6b+2a+4a-3+10b+9+2a}$

$\implies\textsf{Perimeter of a Parallelogram} \sf{=2a+4a+2a+6b+10b-3+9}$

$\implies\textsf{Perimeter of a Parallelogram} \sf{=2a+4a+2a+16b-3+9}$

$\implies\textsf{Perimeter of a Parallelogram} \sf{=8a+16b-3+9}$

$\implies\textsf{Perimeter of a Parallelogram} \sf{=16b+8a+6}$

Answer 2

perimeter of a parallelogram=16b+8a+6