Answer:
Prism A:
Prism B:
Step-by-step explanation:
Given
See attachment for prisms
Required
Determine the surface area of both prisms
Prism A is triangular and as such, the surface area is:
Where
and
Such that a, b and c are the lengths of the triangular sides of the prism.
From the attachment;
So, we have:
Also:
So:
Prism B is a rectangular prism. So, the area is calculated as:
From the attachment
So:
Answer:
We conclude that we must add 4² or 16 to complete the square.
Hence, option C i.e. 16 is the correct answer.
Step-by-step explanation:
We know that the perfect square formula is
<em>(a + b)² = a² + b² + 2ab</em>
Given the equation
Let us add 4² or 16 in the equation
as <em>(a + b)² = a² + b² + 2ab, </em>so
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Therefore, we conclude that we must add 4² or 16 to complete the square.
Hence, option C i.e. 16 is the correct answer.