Respuesta :

12 feet is the answer
f4ke

Answer:

base = 12

Step-by-step explanation:

[tex]\frac{1}{2}*b*5=30[/tex]

Divide 5 from both sides

[tex]\frac{1}{2}*b=6[/tex]

Multiply by 2 on both sides

[tex]b=12[/tex]