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ale4655 [162]
3 years ago
14

The coordinates of the vertices of a regular polygon are given. Find the area of the polygon to the nearest tenth.

Mathematics
1 answer:
alexandr1967 [171]3 years ago
4 0

Answer:

The area is equal to 8\ units^{2}

Step-by-step explanation:

we have

A(0, 0), B(2, -2), C(0, -4), D(-2, -2)

Plot the figure

The figure is a square (remember that a regular polygon has equal sides and equal internal angles)

see the attached figure

The area of the square is

A=AB^{2}

<u><em>Find the distance AB</em></u>

the formula to calculate the distance between two points is equal to

d=\sqrt{(y2-y1)^{2}+(x2-x1)^{2}}

substitute the values

AB=\sqrt{(-2-0)^{2}+(2-0)^{2}}

AB=\sqrt{(-2)^{2}+(2)^{2}}

AB=\sqrt{8}

AB=2\sqrt{2}\ units

<u><em>Find the area of the square</em></u>

A=(2\sqrt{2})^{2}

A=8\ units^{2}

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Step-by-step explanation:

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