Unit Test, Part 2: Surface Area and Volume assignment help please.

Triangular prism surface area = 144 cm²

Volume of sphere = 3,054.857 cm³ (Approx.)

Step-by-step explanation:

1. Figure:

Triangular prism

Triangular prism surface area = BH + Pl

Where P = perimeter of base

Triangular prism surface area = BH + Pl

Triangular prism surface area = (3)(4) + (3+4+5)(11)

Triangular prism surface area = 12 + (12)(11)

Triangular prism surface area = 12 + 132

Triangular prism surface area = 144 cm²

2. Figure:

Sphere

Volume of sphere = (4/3)πr³

Volume of sphere = (4/3)(22/7)(9)³

Volume of sphere = (4/3)(22/7)(729)

Volume of sphere = 64,152/21

Volume of sphere = 3,054.857 cm³ (Approx.)