Answer:
The surface area of the candle is
Step-by-step explanation:
we know that
The surface area of the candle is equal to the area of its triangular base plus the area of its three lateral triangular faces
so
<span>Let n represent the unknown number.
2n + 4 = n + 7
n = 3 </span>
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Answer:
A is the correct answer.
Step-by-step explanation: