Answer :
The area of a triangle = 0.5*base*height
= 0.5*12*c = 6c
Therefor we have 6c is greater than or equal to 60, and so c must be greater than or equal to 10 ft
= 0.5*12*c = 6c
Therefor we have 6c is greater than or equal to 60, and so c must be greater than or equal to 10 ft