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15
×
Find the value of x.
Sum = 900, then x = 121
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×
seesaw
Swap points!
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×
fairy
Take points!
5
10
15
20
25
×
gift
Win 15 points!
Okay!
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thief
Give points!
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10
15
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25
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seesaw
Swap points!
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fairy
Take points!
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25
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fairy
Take points!
5
10
15
20
25
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thief
Give points!
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25
15
×
What is the sum of the measures of the interior angles of a 19-gon?
S = (19 - 2) * 180 = 3060°
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15
×
What is the sum of the exterior angles of a 25-gon?
Sum of exterior is ALWAYS 360°
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15
×
Given parallelogram LMJK, solve for x.
2(50x)+2(130x)=360; x = 1
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15
×
For what value of x will quadrilateral QUAD be a rhombus?
3x+36 = 90; x = 18
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×
trap
No points!
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×
star
Double points!
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rocket
Go to first place!
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×
baam
Lose 25 points!
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15
×
Given parallelogram WXUV, solve for x.
x + 1 = 7; x = 6
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15
×
Given parallelogram STUR, solve for x.
2x+15 = x+15 ; x = 0
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15
×
What is the measure of each exterior angle of a regular decagon?
360/10 = 36°
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15
×
Given parallelogram YVWX, find m∠VXW.
x+60+52=180; x = 68
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15
×
What is the measure of each interior angle of a regular decagon?
((10-2)*180)/10 = 144°
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15
×
If the sum of the measures of a polygon is 1800°, how many sides does it have?
1800=(n-2)*180 ... n = 12
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×
baam
Lose 25 points!
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×
fairy
Take points!
5
10
15
20
25
×
rocket
Go to first place!
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×
lifesaver
Give 20 points!
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15
×
Find the value of x.
Sum = 540, then x = 18
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