All categories

4 years ago

Help me find the arc length of this. Thank you.

Mathematics

1 answer:

BabaBlast [244]4 years ago

4 0

The red chord is a diameter of the circle, so the length of the blue arc is half the circle's circumference.

The circumference of a circle with diameter $d$ is $\pi d$ , so the circle has circumference $8\pi$ , and so the arc has length $4\pi$ .

You might be interested in

Which expression is equivalent to Negative 2 and one-fourth divided by negative two-thirds? StartFraction 9 over 4 EndFraction d

Tanzania [10]

Answer:

The correct answer is:

Negative StartFraction 9 over 4 EndFraction divided by two-thirds

i.e.

$-\dfrac{9}{4} \div \dfrac{2}{3}$

Step-by-step explanation:

We have to find equivalent expression to :

Negative 2 and one-fourth divided by negative two-thirds

i.e.

$-2\dfrac{1}{4} \div \dfrac{2}{3} = ?$

We have to convert the the mixed fraction form $-2\frac{1}{4}$ to simpler $\frac{p}{q}$ fraction form.

Let us learn the concept first.

Mixed fraction is combination of a whole number and a fraction.

Expression of the form $a\frac{b}{c}$ have the following understanding:

c is the divider

b is the remainder and

a is the quotient.

To convert mixed fraction to fraction we can use the following:

$a\dfrac{b}{c} = \dfrac{a \times c+b}{c}$

$\therefore -2\dfrac{1}{4} = -\dfrac{(2 \times 4+1)}{4} = -\dfrac{9}{4}$

Hence

$-2\dfrac{1}{4} \div \dfrac{2}{3} = -\dfrac{9}{4} \div \dfrac{2}{3}$

i.e. the given expression is equivalent to :

Negative StartFraction 9 over 4 EndFraction divided by two-thirds

8 0

4 years ago

Read 2 more answers

Which of the following is equivalent to 1 5/8?

Pepsi [2]

1 5/8 is equal to 13/8

3 0

4 years ago

Read 2 more answers

What is the diameter of a sphere which volume is 500/3 pi cm^3

VARVARA [1.3K]

Radius is 5, diameter is 10

because 4/3 x 5^3 pi = 500/3 pi cm^3

8 0

3 years ago

Help me find the inequality notation and graph on the number line

zaharov [31]

X>4. the line should start at 4 and go towards the right. the dot at 4 should be an open circle

8 0

3 years ago

Which inequality models this problem?

Tasya [4]

Answer:

550w

Step-by-step explanation:

6 0

3 years ago