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MAXImum [283]
3 years ago
15

What is the area of a circle is the radius is 8

Mathematics
2 answers:
Shalnov [3]3 years ago
8 0
When the radius is 8, the area would be 201.06

Area of circle = pi x radius² (pi x 8²)
topjm [15]3 years ago
7 0

Step-by-step explanation: To find the area of the circle,

start with the formula for the area of a circle, which is A = \pi r^{2}.

Notice that our circle has a radius of 8 units.

So plugging into the formula, we have (π)(8 units)².

Now, (8 units)² is equal to 8 units × 8 units or 64 units².

So we have 64π units² which is an exact answer.

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Defining congruent triangles
seropon [69]

Answer:

E -->R

D-->K

O-->O

Step-by-step explanation:

Assuming you are asking for congruent parts, correspondence is the part which corresponds and is also equal.

Here Angle E corresponds and is congruent to Angle R in these congruent triangles.

Angle D is congruent and corresponds to Angle K for these congruent triangles.

Angle O is equal to Angle O as they are vertical angles across a vertex.

5 0
3 years ago
Please help thanks!!
Sidana [21]

So for this, you will be doing two different multiplications: 3 x 4 and √8 x √3.

3 x 4 = 12

√8 x √3 = √24

Now our result is 12√24, however, this can be simplified. Using the product rule of radicals (√ab = √a x √b), our simplification is such:

12√24 = 12√(8 x 3) = 12√(4 x 2 x 3) = 2 x 12√(2 x 3) = 24√6

In short, the answer is 24√6, or the first option.

4 0
3 years ago
If f(x)= 5x, what is f^-1(x)?
Helen [10]

Step-by-step explanation:

f( x) {}^{ - 1}  \\ f(x) = 5x \\ y = 5x \\ x = 5y \\ y =  \frac{x}{5}  \\ f(x) {}^{ - 1}  =  \frac{x}{5}

8 0
2 years ago
How many times does the diameter go around a circle?
marissa [1.9K]

Answer:

The circumference of a circle is approximately three times its diameter. If you divide the circumference by its diameter, the constant ratio is called Pi, which is an irrational number shown with this symbol: For example, the circle below has a radius of 4.5 inches.

Step-by-step explanation:

Hope this helps!

Brain-List?

4 0
3 years ago
Write the real number 12 as a complex number
valkas [14]

A complex fraction is. Fraction at a whole number

7 0
3 years ago
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