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Semenov [28]
2 years ago
10

The circumference of a circle is about 37.7 cm and the diameter is about 12 cm. What expression best represents the value of π ?

Question 3 options: 6/37.7 12/37.7 37.7/6 37.7/12
Mathematics
1 answer:
Yakvenalex [24]2 years ago
6 0

Answer:

Step-by-step explanation:

Circumference of a circle means the perimeter of a circle and it is given be

Perimeter=2πr

P=2πr

Though π is a constant

But this question want us to find π

Make π the subject of the formula

Then, divide both side by

π=P/2r

Given that P=37.7cm

And diameter =12

And radius is half of diameter.

Therefore, radius =12/2=6cm

Then

π=P/2r

π=37.7/2×6

π=37.7/12.

Then, the last option is the correct option

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luda_lava [24]
Area of the 2 end triangles plus area of the 2 rectangular sides plus the area of the bottom rectangle

2 end Triangles
=2x(1/2bh)
=2x1/2x4x6
=24

2 side rectangles
=2(lw)
=2x5x13
=130

Bottom rectangle
=6x13
=78

Total = 24 + 130 + 78 =232

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2 years ago
Misty took a multiple choice test in science that had 50 questions. If the relationship between the number she got correct and t
Alex
In this case, the total number of questions in the test is 50. The possible outcome for the question would be answered wrong, answered correctly or not answered. To know the amount of the correct answer, you need to multiply the incorrect with correct/incorrect ratio. The equation would be:
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3 years ago
Five times the sum of a number and 3 is the same as 3 times the difference of twice the number and 1.
allochka39001 [22]

Answer:

12

Step-by-step explanation:

5(x+3) = 3(2x-1)

5x+15 = 6x-3

15-3 = 6x-5x

12 = x

x = 12

6 0
3 years ago
1. Mr. Morrison has decided that an angle of 15° is
Rasek [7]

Answer:

the height of the front doorstep is 12 cm

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3 years ago
Find the area of the shaded regions of the following figures. Will Give Brainliest!! Answer ASAP
Butoxors [25]

Answer:

Rectangle 1 area: 53 units squared

Shape 2 area: 43.75 units squared

Step-by-step explanation:

Shape 1:

We need to find the area of the two triangles in this rectangle and subtract it from the total area of the rectangle.

Total area of the rectangle:

13 * 5 = 65

Area of triangles (they are congruent):

1/2 * 4 * 3 = 6

6 * 2 = 12

65 - 12 = 53

The area of the shaded part is 53 (I don't know what your unit of measurement is. Just say units.)

Shape 2:

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10 * 3 = 30

Now, let's find the area of the rest of the shape. Triangle first...

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Now, the rectangle and the tiny triangle we can section out at the end:

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Total area: 10.75 + 3 + 30 = 43.75

6 0
3 years ago
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