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Sedbober [7]
3 years ago
9

Find the area of a circle given the diameter of 12

Mathematics
2 answers:
Inga [223]3 years ago
6 0

Answer:

A= pi x r^2

r= 1\2D

r=1\2 x12

r=6

A=pi x 6^2

A=36pi or 36 x 22\7= 113

Step-by-step explanation:

Maslowich3 years ago
3 0

Answer:

A≈113.1

Step-by-step explanation:

i think this is it idk

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A restaurant makes pizzas with 6-inch diameters ad 12-inch diameters. Which of the following statement is true?
a_sh-v [17]

Answer:

The correct option is c: the area of the 6-inch pizza is 1/4 the area of the 12-inch pizza.

Step-by-step explanation:

The area (A) of each pizza is given by:

A = \pi r^{2}

Where:

r: is the radius

For the 12-inch pizza we have:

A_{12} = \pi (\frac{12 inch}{2})^{2} = 113.1 inch

And for the 6-inch pizza we have:

A_{6} = \pi (\frac{6 inch}{2})^{2} = 28.3 inch

The ratio between A₆ and A₁₂ is:

\frac{A_{6}}{A_{12}} = \frac{28.3 inch}{113.1 inch} = 0.25 = \frac{1}{4}

Hence:

A_{6} = \frac{A_{12}}{4}

Therefore, the correct option is c: the area of the 6-inch pizza is 1/4 the area of the 12-inch pizza.

I hope it helps you!            

4 0
3 years ago
HELP ASAP WILL GIVE BRAINLIEST!!!!!
djyliett [7]
0.32. Because you need to find the area, as size 8*8/2 then divide by 100 to get the decimal.I hope this helps.
5 0
3 years ago
If the area of the cube is 2 1/2 what is the surfece area
mariarad [96]

Answer:

37.5

Step-by-step explanation:

6 0
3 years ago
The circumference of F is 120 cm what is the length of DE the minor arc
AfilCa [17]

Answer:

Option E 15 cm

Step-by-step explanation:

we know that

The circumference of a circle subtends a central angle of 360 degrees

so

using proportion

Find out the length of arc DE by a central angle of 45 degrees

Let

x -----> the length of arc DE

\frac{120}{360}=\frac{x}{45}\\\\x=120*45/360\\\\x=15\ cm

7 0
3 years ago
Determine the volume of the shape below?<br> 30<br> 50<br> 40
sleet_krkn [62]

Answer:

30*50*40

= 60000

Step-by-step explanation:

yes

3 0
3 years ago
Read 2 more answers
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