Answer:
32
Step-by-step explanation:
Refer to the attachment below:
The diagonal splits the rectangle into 2 triangles, the red and yellow triangle.
Since this is a rectangle, we know that the triangles are right triangles.
Knowing this we can use Pythagorean theorem. X^2+14^2=20^2
X=2
Add to find the perimeter:
2+14+14+2 = 32
