Question

Help due soon plss!!!!

Answer 1

Cube=150cm^2

Triangular Prism=228ft^2

Explanation:

Cube

`A=6a^2=6*5^2=150cm^2`

Triangular prism

Using these formulas

`A=2A_(B)+(a+b+c)h\\A_(B) =√(s(s*a)(s*b)(s*c)) \\s=(a+b+c)/(2)`

Solving for A

`A=ah+bh+ch+(1)/(2) √(-a^4+2(ab)^2+2(ac)^2-b^4+2(bc)^2-c^4) \\=6.5*11+5*11+6.5*11+(1)/(2) *√(-6.5^4+2*(6.5*5)^2+2*(6.5*6.5)^2-5^4+2*(5*6.5)^2-6.5^4) \\=228ft^2`