All categories

3 years ago

Find the area of the circle with the given radius or diameter. Use 3.14.

Mathematics

1 answer:

elena55 [62]3 years ago

4 0

Answer:

Step-by-step explanation:

If the radius, r, is given, then the area of the circle is A = πr².

If the diameter, d, is given, then the circle area is A = π(d/2)², or A = πd² / 4.

You might be interested in

Find the angles a, b, c and d.

Alborosie

A=180-79= 101°

B=75°

C=83°

D=101°

6 0

3 years ago

Read 2 more answers

Can I get some help, it is due in 15 minutes and I need help. Thanks, any help appreciated

koban [17]

Well, I'm way past the 15 min mark, but here's how to do the question.

With this, you will need to use the distance formula, $\sqrt{(x_2-x_1)^2+(y_2-y_1)^2}$ , on XY, YZ, and ZX.

XY: $\sqrt{(3-1)^2+(1-6)^2}$

Firstly, solve inside the parentheses: $\sqrt{(2)^2+(-5)^2}$

Next, solve the exponents: $\sqrt{4+25}$

Next, solve the addition, and XY's distance will be √29

(The process is the same with the other 2 sides, so I'll go through them real quickly)

YZ:

$\sqrt{(6-3)^2+(3-1)^2}\\ \sqrt{(3)^2+(2)^2}\\ \sqrt{9+4}\\ \sqrt{13}$

ZX:

$\sqrt{(1-6)^2+(6-3)^2}\\ \sqrt{(-5)^2+(3)^2}\\ \sqrt{25+9}\\ \sqrt{34}$

Now that we got the 3 sides, we can add them up: $\sqrt{29}+\sqrt{13} +\sqrt{34} =14.8$

In short, your answer is 14.8, or the second option.

8 0

3 years ago

HELP PLZZZ!!!! What is the approximate area of a circular pond?

Georgia [21]

Answer:

Step-by-step explanation:

The formula of an area of a circle:

$A=\pi r^2$

r - radius

We have the diameter d = 250 ft. We know: d = 2r.

Therefore r = 250 : 2 = 125 ft.

Substitute:

$A=\pi(125)^2=15625\pi$

$\pi\approx3.14\to A=(15625)(3.14)=49062.5\ ft^2$

7 0

3 years ago

Find three consecutive even integers whose sum is 72 solve

Alina [70]

72/3 is 24 so 24+24+24 if you add one to one and take one away it’s the same so it becomes 23+24+25=72.

5 0

3 years ago

A teacher wants to know if students at Lakers High would rather have hot dogs or hamburgers at the school cookout. Which group o

mafiozo [28]

<em>Option A.</em>

<em>The reasoning behind my answer is that you would be getting a large and random group of students meaning that they have many different people and not a specific group of people. Randomly choosing also gives a chance of getting all grades meaning that it wouldn't just be one specific grade of which was surveyed.</em>

<em>Hope this helps and have a nice day.</em>

<em>-R3TR0 Z3R0</em>

5 0

3 years ago