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xz_007 [3.2K]
4 years ago
12

The circumference and the area of a circle woth radius 2cm

Mathematics
2 answers:
djyliett [7]4 years ago
7 0
Area ≈ 12.57 
Circumference ≈ 12.57 
julsineya [31]4 years ago
5 0
4x3.14= 12.56 is the circumference of the circle.
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Which term describes the dotted line in the quadrilateral?
Tasya [4]
The correct answer is C diagonal
7 0
3 years ago
Please help me, will mark brainliest for correct answers.....
Alexandra [31]

Answer:

1. B) 5.7

2. A) 12

3. A) 11.4

4. A) 5.7

5. A) 16.2

6. A) 11.2

7. No, they do not form a right triangle

8. Yes, they do form a right triangle

Step-by-step explanation:

Extra tip: The hypotenuse has to be less than both sides added together, but cannot be more than either of the sides alone.

1.

16² + b² = 17²

256 + b² = 289

256 - 256 + b² = 289 - 256

b² = 33

√b² = √33

b = 5.74 or 5.7

2.

16² + b² = 20²

256 + b² = 400

256 - 256 + b² = 400 - 256

b² = 144

√b² = √144

b = 12

3.

7² + 9² = c²

49 + 81 = c²

130 = c²

√130 = √c²

11.40 or 11.4 = c

4.

7² + b² = 9²

49 + b² = 81

49 - 49 + b² = 81 - 49

b² = 32

√b² = √32

b = 5.65 or 5.7

5.

a² + 5² = 17²

a² + 25 = 289

a² + 25 - 25 = 289 - 25

a² = 264

√a² = √264

a = 16.24 or 16.2

6.

10² + b² = 15²

100 + b² = 225

100 - 100 + b² = 225 - 100

b² = 125

√b² = √125

b = 11.18 or 11.2

7.

15² + 8² = 16²

225 + 64 = 256

289 ≠ 256

8.

5² + 12² = 13²

25 + 144 = 169

169 = 169

8 0
3 years ago
Find the value of x<br><br> 8th weekly math homework-week 29
Verdich [7]
Since the other angle that right next to it, the same angle you equal both angles together.

4x = 68.

We want to get x by its self. There is a 4 with the x and they're multiplying. to get rid of 4 we need to the opposite of multiplying which is division on both sides of the equation.

4x = 68
/4      /4

4 divided by 4 is 1 and 68 divided by 4 is 17

x = 17 is the answer.
If you plug in x = 17 into 4x, it will be 68

3 0
3 years ago
Read 2 more answers
I'm not the best a geometry so any help would be great
Vadim26 [7]

Answer:

im pretty sure its b

Step-by-step explanation:

6 0
3 years ago
One large submarine sandwiches is divided equally among four people how much of the sandwich did each person receive
wlad13 [49]
Each person received one quarter, which can be written as 1/4 or 0.25.
6 0
4 years ago
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