Respuesta :
Answer:
He used the wrong expression to represent the area of the base of the pyramid.
Step-by-step explanation:
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Vikram made an error in the expression to represent the area of the base of the pyramid. So, Option B is correct.
What is the surface area of a square pyramid?
The surface area of a square pyramid is given by the formula,
[tex]SA=s^2+4(\frac{1}{2}bh)[/tex]
Where, s-length of the side of the square, b- length of the base,
and h- the height of the pyramid.
Given data:
The square base had a side of length s=34.2 inches
The height h=28.4 inches
Calculating the surface area:
The surface area is given by the expression:
[tex]SA=s^2+4(\frac{1}{2}bh)[/tex]
On substituting the values
[tex]SA=(34.2)^2+4(\frac{1}{2}(34.2)(28.4))[/tex]
But Vikram wrote,
[tex]SA=(33.2)(34.2)+4(\frac{1}{2}(34.2)(28.4))[/tex]
So, he used the wrong expression for the area of the base of the pyramid.
Therefore, option B is correct.
Learn more about the surface area of the pyramid here:
https://brainly.com/question/15928093
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