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puteri [66]
3 years ago
7

This Is Graded, Please Help TYSM!

Mathematics
1 answer:
olchik [2.2K]3 years ago
4 0

Answer: For the cirlces since I already answered the triangles

1.  Area:660.519855417

   Circumference:91.1061869541

2. Area: 572.555261117

    Circumference:84.8230016469

3. Area:283.528736986

    Circumference:59.6902604182

4. Area:1017.87601976

    Circumference:113.097335529

5. Area: 63.6172512352

    Circumference: 28.2743338823

6. Area:380.132711084

    Circumference:69.115038379

Step-by-step explanation:

The formula for the area of a circle is π*r^2, r being the radius or the half line in the circle, and the formula for the circumference is   π*r*2, or  π*d, or the diameter which is the line that goes all the way through like number 5. The radius is half the diameter.

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Use the recursive formula to answer the question.
scZoUnD [109]
You know a1.
So find a2, a3, and so on until a7.

a(1) = 12
a(2) = 16
a(3) = 20
a(4) = 24
a(5) = 28
a(6) = 32
a(7) = 36
Each is 4 more than the previous.
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5 0
3 years ago
Polygon a b c d is shown with exterior angles. exterior angle a is 25 degrees, exterior angle b is 146 degrees, and exterior ang
Kaylis [27]

The measure of angle bcd of the polygon abcd is 40°.

Hence, option b) 40° is the correct answer.

<h3>What is a polygon?</h3>

A polygon is simply a two-dimensional a plane shape enclosed by line segments called sides.

The sum of the exterior angles of a regular polygon will always equal 360

Given that;

  • Exterior angle a = 25 degrees
  • Exterior angle b =  146 degrees
  • Exterior angle d = 149 degrees
  • Exterior angle c = ?

25° + 146° + 149° + c = 360°

320° + c = 360°

c = 360° - 320°

c = 40°

The measure of angle bcd of the polygon abcd is 40°.

Hence, option b) 40° is the correct answer.

Learn more about polygons here: brainly.com/question/22408868

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8 0
2 years ago
2n - 5 = 31<br><br> Answer: The value of n is ....
Romashka [77]

Answer:

n = 18

Step-by-step explanation:

2n - 5 = 31

Add 5 to each side

2n - 5+5 = 31+5

2n = 36

Divide each side by 2

2n/2 = 36/2

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In a recent survey 7 out of 10 people prefer coffee in the morning the rest said they prefer tea if 27 people said they prefer t
prohojiy [21]
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