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Temka [501]
4 years ago
6

8,11, and 14 please. Thank you

Mathematics
2 answers:
Minchanka [31]4 years ago
8 0
Formula: A= 3.14xr^2
8. 39x39 = 1,521x3.14 = 4,775.94

11. 29x29 = 841x3.14 = 2,640.74

14. 22.5x22.5 = 506.25x3.14 = 1,589.6

I hope this helps
stellarik [79]4 years ago
6 0
8= 266.9
11= 91.06
14= 70.65
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Help please. I’m stuck on this one
Nastasia [14]

Answer:

b = 25m

Step-by-step explanation:

Hi there!

We're given angle B and the length of <em>a</em> in this right triangle. We must solve for the length of <em>b</em>. <em>a</em> and <em>b</em> are the two legs of the right triangle.

In this case, we can use the tangent ratio:

tan\theta=\displaystyle\frac{opposite}{adjacent}

Plug in the given information:

tan\displaystyle\frac{\pi}{4} =\displaystyle\frac{b}{25}\\\\25tan\displaystyle\frac{\pi}{4} =b\\\\b=25

Therefore, b = 25m.

We can also use this using special triangle rules. \displaystyle\frac{\pi}{4} radians is equal to 45 degrees, making this a 45-90-45 triangle. This would make <em>a</em> and <em>b</em> equal in length.

I hope this helps!

5 0
3 years ago
Is Joon lee soo a girl or boy name???​
blagie [28]

Answer:

Girl

Step-by-step explanation:

For me... it sound more like a girl but it could also be a boy's name

3 0
3 years ago
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A book sold 37,900 copies in its first month of release. Suppose this represents 7.1% of the number of copies have been sold to
stira [4]
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8 0
3 years ago
A hall measures 12 metres long,
Ilya [14]

\huge\sf\red{Answer : - }

<h2>Given :- </h2>

  • Length of the hall = 12m

  • wide of the hall (Breadth) = 10m

  • Height of the hall = 4m

<h2>To Find :- </h2>

  • Surface area of the walls (Four walls area)

<h2>Formula :- </h2>

Four walls area of the hall = 2h(l+b)

where,

  • h = height

  • l = length

  • b = breadth

<h2>Solution : - </h2>

By substituting values according to the formula,

➙ 2 × 4m(12m + 10m)

➙ 8m(22m)

➠ 176m²

It's option B

<h3><u>Hence, The surface area of the walls is (B) 176m²</u></h3>

<h2 /><h2 />
7 0
3 years ago
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