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vladimir1956 [14]
3 years ago
8

Number of side number of triangle sum of the measure of the angles ​

Mathematics
1 answer:
lesantik [10]3 years ago
6 0

Answer:

Quadrilateral

#sides = 4

#∆ = 4-2 =2

sum= n(4-2)180° = 360°

pentagon

#sides =5

#∆ = 5-2 = 3

sum = n = (5-2)180° = 540°

Octagon

#sides = 8

#∆= 8-2 = 6

sum = n = (8 - 2)180° = 1080°

Nonagon

#sides =9

#∆ =9-2 = 7

sum = n=(9-2)180° = 1260°

Heptagon

#sides= 7

#∆= 7-2 = 5

sum = n= (7-2)180° = 900°

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Pavlova-9 [17]
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y
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(((18•(x5))•(y3))+((6•(x2))•(y4)))+((((24•(x6))•—)•x)•y)
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Equation at the end of step
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y
(((18•(x5))•(y3))+((6•(x2))•(y4)))+((((23•3x6)•—)•x)•y)
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3.1 Canceling out 3 as it appears on both sides of the fraction line


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(((18•(x5))•(y3))+((6•(x2))•(y4)))+((8x6y•x)•y)
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Equation at the end of step
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(((18•(x5))•(y3))+((2•3x2)•y4))+8x7y2
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5
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Equation at the end of step
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(((2•32x5) • y3) + (2•3x2y4)) + 8x7y2
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6
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STEP
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Pulling out like terms

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Trying to factor a multi variable polynomial :

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3 0
2 years ago
Triangle Review 2.0 (Math i need help please)
lara31 [8.8K]

Answer:

A= 30

Step-by-step explanation:

This requires several steps.

First, you need to find the 2 other missing angles.

One can be found easily by substracting 130 from 180

so 180-130 = 50

The other angle is the same as 8x+4

Now set up your equation

180=3x-6 + 8x+4 +50

180 = 3x + 8x -6 + 4 +50

180+6-4-50 = 11x

132 = 11x

132/11 = x

12 = x

Now plug in 12 for x in your angle A

A=3x-6

A=3 * 12 - 6

A=36 - 6

A= 30

6 0
2 years ago
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victus00 [196]

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Divide 7 miles by 60=0.11666666666

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You would get 2.8

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