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masha68 [24]
3 years ago
5

What did I do wrong when finding out the sector area? I know the answer I got is wrong so can someone please help me

Mathematics
1 answer:
bonufazy [111]3 years ago
4 0
I believe your mistake is that you are trying to use the sector area formula ti find arc length when there is already a formula for it.
The formula for it is
2r\pi( \frac{degree}{360} )
So first substitute the values in and then simplify!
2(10.5)\pi( \frac{118}{360} )
Now simplify!
21 × 118 is 2478 so it's
\frac{2478}{360} \pi
When divided ou and multiplied, this is 21.62cm!

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Dos cuadrados de lado
Kaylis [27]

La franja amarilla del rectángulo tiene un área de 30 centímetros cuadrados.

<h3>¿Cuál es el área de la franja amarilla del rectángulo?</h3>

En este problema tenemos un rectángulo formado por dos cuadrados que se traslapan uno al otro. La franja amarilla es el área en la que los cuadrados se traslapan. La anchura del rectángulo es descrita por la siguiente ecuación:

(10 - x) + 2 · x = 17

Donde x se mide en centímetros.

A continuación, despejamos x en la ecuación descrita:

10 + x = 17

x = 7

Ahora, el área de la franja amarilla se determina mediante la fórmula de area de un rectángulo:

A = b · h

Donde:

  • b - Base del rectángulo, en centímetros.
  • h - Altura del rectángulo, en centímetros.
  • A - Área del rectángulo, en centímetros cuadrados.

A = (10 - 7) · 10

A = 3 · 10

A = 30

El área de la franja amarilla del rectángulo es igual a 30 centímetros cuadrados.

Para aprender más sobre áreas de rectángulos: brainly.com/question/23058403

#SPJ1

8 0
1 year ago
Find the length of side x in simplest radical form with a rational denominator.
IRINA_888 [86]

Answer: 10√3 / 3

Step-by-step explanation:

cos 30 = 5 / x

x = 5 / cos 30

= 5 / √3 / 2

= 10 √3

= 10√3 / 3

7 0
3 years ago
Given that <img src="https://tex.z-dn.net/?f=a%5Cneq%20b" id="TexFormula1" title="a\neq b" alt="a\neq b" align="absmiddle" class
xz_007 [3.2K]

Answer:

Step-by-step explanation:

√a+√b=√(a+b)

squaring

a+b+2√a√b=a+b

or 2√a√b=0

which is possible only if a=0 or b=0

Both a and b can't be zero as a≠b

8 0
3 years ago
HELP PLEASE!!!!ASAP Giving out brainliest
QveST [7]
It would be 10 as translating the line doesn't make it bigger or smaller<span />
8 0
3 years ago
5(3x - 11) - 9x +30 +(6x + 22) - 8(3 - x)<br>simplify​
Mamont248 [21]

Answer:

Step-by-step explanation:

4 0
3 years ago
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