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Leokris [45]
3 years ago
13

How would I do this problem?

Mathematics
1 answer:
Softa [21]3 years ago
8 0

Answer:

Step-by-step explanation:

The sum of the interior angles of an n gon is found by using the following formula.

(n-2)*180 = sum of the interior angles.

(n - 2) * 180 = 3960                     Divide by 180

(n - 2) 180/180 = 3960/180         Show the division

n - 2 = 22                                     Add 2 to both sides.

n -2+2=22+2                               Combine

n = 24

======================================

To find the size of each angle, use

(n - 2)*180/n

(24 - 2)*180/24

22 * 180/24

3960/24 = 165

===========

another way

===========

You already know there are 24 sides. You are given the sum of the interior angles as 3960

All you really need to do is 3960/24 = 165

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3 years ago
Determine which set of side measurements could be used to form a right triangle.
Dmitry_Shevchenko [17]

The sets (\sqrt{7}, 4, \sqrt{23}) and(\sqrt{29}, \sqrt{39}, 68) could be used to form a right triangle.

What is right triangle?

A right triangle, also known as a right-angled triangle, an orthogonal triangle, or historically a rectangled triangle, is a triangle with one right angle, meaning that its two sides are perpendicular. Trigonometry's foundation is the relationship between the right triangle's sides and other angles.

Since for the right triangle is a, b, c are three sides of a triangle, where c is the diagonal, then

a^2 + b^2 = c^2

Consider, the set  (3, 5, 8)

Here,  3^2 + 5^2 ≠ 8^2.

Consider, the set (8, 9, 11)

Here, 8^2 + 9^2 ≠ 11^2

Consider, the set (\sqrt{7}, 4, \sqrt{23})

Here, (\sqrt{7})^2 + 4^2 = (\sqrt{23})^2

Consider, the set (\sqrt{29}, \sqrt{39}, 68)

Here, (\sqrt{29})^2 + (\sqrt{39})^2 = 68

Hence, (\sqrt{7}, 4, \sqrt{23}), (\sqrt{29}, \sqrt{39}, 68) could be used to form a right triangle.

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4 0
1 year ago
Read 2 more answers
A restaurant earns $1445 on Friday and $1624 on Saturday. Write and solve an equation to find the amount xx (in dollars) the res
Gennadij [26K]
Total earned Friday = $1445
Total earned Saturday = $1624
Earnings Sunday - $xxx

Average over 3 day period = $1500
Therefor total over 3 day = $1500 x 3 = $4500
So earnigs friday + Saturday = $1445 + $1624 = $3069
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5 0
3 years ago
Helppppppppppppppppp
sweet-ann [11.9K]

Answer:

the answer is 112

Step-by-step explanation:

7² = 49.

4² = 16.

49+3(16+3+2) = 49+3(21) = 49+63 = 112

3 0
3 years ago
Read 2 more answers
Please help me! Show work. Thank you so much.
vesna_86 [32]
Parallelogram:
A = bh

so find b
b = A/h

A = 294 ft^2 and h = 14.7 ft 
b = A/h = 294 / 14.7 = 20

answer:
the length of the base = 20 ft
7 0
3 years ago
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