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lions [1.4K]
3 years ago
11

I need the answers for all of these! Please help

Mathematics
1 answer:
mihalych1998 [28]3 years ago
7 0
What grade give  this kind of work
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PLEASE!!!!!!!The adjoining figure shows two circles with the same center. The
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<h3><u>Answer:</u></h3>

\boxed{\boxed{\pink{\sf \leadsto Hence \ the \ area \ of \ shaded \ region \ is 264 cm^2}}}

<h3><u>Step-by-step explanation:</u></h3>

Here , two circles are given which are concentric. The radius of larger circle is 10cm and that of smaller circle is 4cm . And we need to find thelarea of shaded region.

From the figure it's clear that the area of shaded region will be the difference of areas of two circles.

Let the,

  • Radius of smaller circle be r .
  • Radius of smaller circle be r .
  • Area of shaded region be \bf Area_{shaded}

\bf \implies Area_{Shaded}= Area_{bigger}-Area_{smaller} \\\\\bf\implies Area_{Shaded} = \pi R^2 - \pi r^2  \\\\\bf\implies Area_{shaded} = \pi ( R^2-r^2)  \\\\\bf\implies Area_{shaded} = \pi [ (10cm)^2 - (4cm)^2]  \\\\\bf\implies Area_{shaded}  = \pi [ 100cm^2-16cm^2]  \\\\\bf\implies Area_{shaded}  = \pi \times 84cm^2  \\\\\bf\implies Area_{shaded}  = \dfrac{22}{7}\times 84cm^2  \\\\\bf\implies \boxed{\red{\bf Area_{shaded} = 264 cm^2 }}

<h3><u>Hence </u><u>the</u><u> </u><u>area</u><u> </u><u>of</u><u> the</u><u> </u><u>shaded </u><u>region</u><u> is</u><u> </u><u>2</u><u>6</u><u>4</u><u> </u><u>cm²</u><u>.</u></h3>

5 0
3 years ago
Please help me........
Kobotan [32]

Answer:

dkdkdkdjdjd

Step-by-step explanation:

3 0
3 years ago
PLEASE HELP HELP ASAP
Anit [1.1K]

Answer:

12.7311111111111 on and on

Step-by-step explanation:

3 0
3 years ago
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Find the length of the hypotenuse of a right triangle if the lengths of the other two sides are both 3 inches.
Simora [160]
3^2+3^2=c^2 18=c^2 c=3sqrt2 Or 4.24 if you need a decimal answer
5 0
3 years ago
Insert a digit to make numbers divisible by six possible
Kipish [7]

Lets say our number is 237x8

2+3+7+8+x should be divisible by 6.

20+x should be divisible by 6.

x=4

5 0
3 years ago
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