The first hexagon: 2, 2, 3, 4, 6, 7
The second hexagon: 3, 3, a, b, c, d
The hexagons are similar. Therefore the sides are in proportion.
<em>multiply both sides by 3</em>
<em>multiply both sides by 4</em>
<em>multiply both sides by 6</em>
<em>multiply both sides by 7</em>
The perimeter: