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zhuklara [117]
3 years ago
8

How would u do this problem ?? #9

Mathematics
1 answer:
Ad libitum [116K]3 years ago
5 0
Since the scale factor is 4:3 then every dimension of triangle WXY is (3/4) of every dimension of triangle CDE.
The perimeter of triangle CDE = 13 + 22 + 29 = 64.
So, the perimeter of triangle WXY = (3/4) * 64 = 48


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Tanθ=sinθ/cosθ<br><br> True or False
Sedbober [7]
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Hitman42 [59]

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=
svet-max [94.6K]

Answer:

The polygon has 9 sides

Step-by-step explanation:

we know that

A regular polygon has equal length sides and equal interior angles

step 1

Find the measure of the interior angle

Remember that

The interior angle plus the exterior angle must be equal to 180 degrees (form a linear pair)

Let

x ----> the measure of each interior angle in the regular polygon

so

x+40^o=180^o

solve for x

x=180^o-40^o=140^o

step 2

Find the number of sides of the regular polygon

we know that

The measure of each interior angle in a regular polygon is given by the formula

x=\frac{(n-2)180^o}{n}

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140^o=\frac{(n-2)180^o}{n}

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therefore

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8 0
3 years ago
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