Question

I need help with geometry

Answer 1

109.85641

Explanation:

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

A=ah+bh+ch+1/2 squared rooted﹣a4+2(ab)2+2(ac)2﹣b4+2(bc)2﹣c4

=4·8+4·8+4·8+1/2·squared rooted﹣44+2·(4·4)2+2·(4·4)2﹣44+2·(4·4)2﹣44

≈109.85641

Answer 2

128

Explanation:

4*4*8=