what is the value of b for the following triangular prism?
40 ft2
48 ft2
60 ft2
24 ft2

b that is base area we have to find

2 right angled triangles placed parallel to each other forms triangular prism here

so b is just an area of right angled triangles having sides which are making an angle of 90

6 ft and 8 ft are sides making an angle 90 degree

so, b = 1/2 ( 6 )( 8)

= 24 ft^2

b