We are asked to find the area of a regular hexagon. We are given the apothem, which is the perpendicular distance from the center to one of the sides, as 32 cm. We need to round the answer to the nearest tenth.

GeometryHexagonAreaApothemRegular PolygonTrigonometryApproximation
2025/4/7

1. Problem Description

We are asked to find the area of a regular hexagon. We are given the apothem, which is the perpendicular distance from the center to one of the sides, as 32 cm. We need to round the answer to the nearest tenth.

2. Solution Steps

First, we need to determine the side length of the hexagon. A regular hexagon can be divided into 6 equilateral triangles. The apothem bisects one of these equilateral triangles. Let ss be the side length of the hexagon. The apothem, aa, is related to the side length by the formula a=s23a = \frac{s}{2} \sqrt{3}.
We are given a=32a = 32 cm.
So, we have 32=s2332 = \frac{s}{2} \sqrt{3}.
Multiplying both sides by 2, we get 64=s364 = s \sqrt{3}.
Dividing both sides by 3\sqrt{3}, we get s=643s = \frac{64}{\sqrt{3}}.
Rationalizing the denominator, we have s=6433s = \frac{64 \sqrt{3}}{3}.
Now, we find the perimeter PP of the hexagon. Since it has 6 sides, P=6s=66433=2643=1283P = 6s = 6 \cdot \frac{64 \sqrt{3}}{3} = 2 \cdot 64 \sqrt{3} = 128 \sqrt{3}.
The area of a regular polygon is given by the formula:
A=12aPA = \frac{1}{2} a P, where aa is the apothem and PP is the perimeter.
In this case, A=12(32)(1283)=161283=20483A = \frac{1}{2} (32) (128 \sqrt{3}) = 16 \cdot 128 \sqrt{3} = 2048 \sqrt{3}.
Now, we approximate the value of 204832048 \sqrt{3}:
A2048×1.7320508=3547.7064A \approx 2048 \times 1.7320508 = 3547.7064.
Rounding to the nearest tenth, we get A3547.7A \approx 3547.7 cm2^2.

3. Final Answer

3547.7 cm2^2

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