Respuesta :

Answer:

10

Step-by-step explanation:

A=b(h)/2

70=14(h)/2

140=14(h)

10=h

Hope that helps

Answer:

10ft = height of the sign

Step-by-step explanation:

The formula for a triangle = 1 /2 base × height = Area of triangle   Therefore 14 base is divided by 2   = area/ 1/2 base =  70 / 7 = 10 feet  height