Respuesta :

M7Yasuo

Answer:

40 ft

Step-by-step explanation:

Perimeter is the sum of all 3 sides of a triangle.

For this particular triangle, add 8+20+12:

40

Answer:

40ft

Step-by-step explanation:

to find perimeter, you have to add up all the sides.

8ft+20ft+12ft+40ft