Question

He surface area for a rectangular prism with a square base is SA=2s2+4sh. What is the surface area if s=2 and h=4?

Answer 1

40 units²

Explanation:

substitute the given values for s and h into the formula

SA = ( 2 × 2² ) + (4 × 2 × 4 ) = 8 + 32 = 40

Answer 2

40 units²

Explanation:

Given that the surface area for a rectangular prism with a square base is SA=2s2+4sh.

Where the values of the variables in the equation which are s and h are known, the area can be computed by the substitution of the known variables into the equation.

Hence where s = 2 and h = 4

SA = 2(2)² + 4(2)(4)

= 8 + 32

= 40 units²