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Mathematics 20 Online
terrshields01:

Part of a tiling design is shown. The center is a regular hexagon. A square is on each side of the hexagon, and an equilateral triangle joins the squares. Complete the pattern around the hexagon and calculate the total area of the pattern.

Vocaloid:

@terrshields01 is there a picture that goes with this?

terrshields01:

1 attachment
Vocaloid:

first step would be to continue the pattern

Vocaloid:

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Vocaloid:

each of the 6 squares' areas can be found with area = s^2

Vocaloid:

the hexagon is made of 6 equilateral triangles with side 8 the formula for area for an equilateral triangle is sqrt(3)/4 s^2 let me know if you want me to derive this

Vocaloid:

for the exterior triangles we need to do a bit of work

Vocaloid:

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Vocaloid:

|dw:1507577849007:dw|

Vocaloid:

120 + 90 + 90 + triangle angle = 360 the angle inside the triangle is 60

Vocaloid:

|dw:1507577918514:dw|

Vocaloid:

since the exterior triangle is isosceles, the other two angles must also be 60 (180-60)/2 = 60

Vocaloid:

meaning that the 6 exterior triangles are also equivalent to the interior triangles

Vocaloid:

so, to recap, find the area of the hexagon, squares, and exterior triangles using the information I have given you

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