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Sedbober [7]
3 years ago
11

Which one of the following formulas will find the sum of interior angles of a polygon with n sides

Mathematics
2 answers:
Yakvenalex [24]3 years ago
7 0
<span><span>Each time we add a side (triangle to quadrilateral, quadrilateral to pentagon, etc), we </span>add another 180°<span> to the total of the interior angle.</span></span>  
Triangle, sum interior angle is 180
Square, is 360
Pentagon is 540  
So the formula is <span>180 ( n – 2 )</span>
sveticcg [70]3 years ago
7 0

Answer:

A. 180n - 2

Not 180n-360

Not 180(n-1)

Not 180n

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A line that includes the point (-3,-4) and (-4,f ) has a slope of 6. What is the value of f?
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Answer:

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Step-by-step explanation:

Formula for slope

m =( y_2 - y_1)/(x _2 - x _1)

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6 = (y_2 - y_1) / (x _2 - x_1)

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Insert the values into

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Cross multiply

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-6 - 4 = f

f = -6 - 4

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( -3 , -4) ( -3 , f)

The value of f is -10

( -3 , -4) ( -3 , -10)

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