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3 years ago

Which formula could be used to determine the circumference of a circle?

Mathematics

2 answers:

saveliy_v [14]3 years ago

5 0

Answer:

D.) C = pi *d

Step-by-step explanation:

The circumference of a circle is given by

C= 2 * pi * r

C = pi *d

Hunter-Best [27]3 years ago

4 0

D is the right option

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Answer:

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2 years ago

Which of the following could be used to calculate the area of a sector in the circle shown below

lara [203]

Answer:

Therefore the Last option is correct

$\textrm{Area of Sector ACD}=\pi (8\ in)^{2}\times (\frac{42}{360})$

Step-by-step explanation:

Given:

Radius = r = 8 in

θ = 42°

To Find:

Area of Sector = ?

Solution:

We know that

$\textrm{Area of Sector}=\pi (Radius)^{2}\times \frac{\theta}{360}$

Substituting the given values in the formula we get

$\textrm{Area of Sector ACD}=\pi (8\ in)^{2}\times (\frac{42}{360})$

Which is the required Answer.

Therefore the Last option is correct

$\textrm{Area of Sector ACD}=\pi (8\ in)^{2}\times (\frac{42}{360})$

8 0

2 years ago

What is the mean of the following set of numbers? 32, 31, 37, 44 a. 13 b. 34 c. 36

ELEN [110]

Mean is average

so we have 4 numbers
sum them then divide by 4

(32+31+37+44)=144
divide by 4
144/4=36

answer is C

6 0

3 years ago