The lateral area of the prism is 240 square inches. Find the total surface area.

288 Square inches

Step-by-step explanation:

A=2AB + (a+b+c) h

AB=s (s﹣a) (s﹣b) (s﹣c)

s=a+b+c

2

Solving forA

A=ah+bh+ch+1

2﹣a4+2 (ab) 2+2 (ac) 2﹣b4+2 (bc) 2﹣c4=8·10+10·10+6·10+1

2·﹣84+2· (8·10) 2+2· (8·6) 2﹣104+2· (10·6) 2﹣64=288

Its C, 288 square inches