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Arisa [49]
3 years ago
10

What is the sum of the angles of an octagon?

Mathematics
1 answer:
Pani-rosa [81]3 years ago
7 0
Answer is 1080 degrees

Formula for calculating angles in a polygon (Shape with 4 or more sides) is (n-2) x 180, where n is the number of sides on the shape. Octagon has eight sides, so you subtract it by 2, which is 6. Multiply that by 180 to get 1080, which is the sum of the angles.

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Leto [7]

Answer:

y=3

Step-by-step explanation:

y + 3 = -y + 9

y + y = 9 - 3

2*y = 6

y = 6/2

y = 3

6 0
3 years ago
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The measures of the three angles of a triangle are given by 1. 3x +1 2. 2x -3, and 9x. What is the measure of the smallest angle
nordsb [41]
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3 years ago
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lora16 [44]

Answer

~~~~~~~~~~~~

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3 years ago
The first terms of a geometric sequence are 0.778,-2.33,7,-21, and 63. What is the 6th term?
aliya0001 [1]

Answer:

-189

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3 0
4 years ago
Which expression is equivalent to -3(4c-2) -2c
sergeinik [125]

Answer:

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Step-by-step explanation:

We need to find the equivalent expression for -3(4c-2) -2c.

First we open the brackets as follows :

-3(4c-2) -2c

= -12c+6-2c

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So, the equivalent expression is -14c+6.

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