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frozen [14]
2 years ago
11

What is the circumference of a circle with area 49Pi? Round to the nearest tenth.

Mathematics
1 answer:
Mekhanik [1.2K]2 years ago
6 0

Answer:

15.6=C

Step-by-step explanation:

Area is equal to pi times radius squared. Circumference is equal to 2 times pi times radius. Divide area by pi and then take the square root of that number.

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30 POINTS please help me!
Stels [109]
To prove a similarity of a triangle, we use angles or sides.

In this case we use angles to prove

∠ACB = ∠AED (Corresponding ∠s)
∠AED = ∠FDE (Alternate ∠s)

∠ABC = ∠ADE (Corresponding ∠s)
∠ADE = ∠FED (Alternate ∠s)

∠BAC = ∠EFD (sum of ∠s in a triangle)

Now we know the similarity in the triangles.

But it is necessary to write the similar triangle according to how the question ask.

The question asks " ∆ABC is similar to ∆____. " So we find ∠ABC in the prove.

∠ABC corressponds to ∠FED as stated above.
∴ ∆ABC is similar to ∆FED

Similarly, if the question asks " ∆ACB is similar to ∆____. "
We answer as ∆ACB is similar to ∆FDE.

Answer is ∆ABC is similar to ∆FED.
7 0
3 years ago
HELP please I’ll post a picture to make it easier to look at <br> (I made it to get 20 points)!!!
Trava [24]

Answer:

Both expressions are = to 11 when x is 2.

Therefore, the expressions are equivalent.

6 0
3 years ago
Find the amount of the discount on a 234 item with a discount of 15% weggy
AleksandrR [38]
Original amount = $234

Discount = 15% of $234 = 0.15 x 234 = $35.10

Sale Price = $234 - $35.10 = $198.90

----------------------------------------------
Answer : Sale Price is $198.90
----------------------------------------------
3 0
3 years ago
How do you find the arc in a circle
miskamm [114]

Answer: Watch the description

Step-by-step explanation:

6 0
3 years ago
Latisha Started her history classWith two scores on tests72% and 89%Confirm that the meanOf these two scoresIs 80.5%
Marina86 [1]

72+89=161

161/2=80.5

So yes, it is correct!

6 0
3 years ago
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