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2 years ago

I could use a hand here

Mathematics

2 answers:

worty [1.4K]2 years ago

8 0

Answer:

A. 48

B. 24

C. C

Step-by-step explanation:

To divide up whole numbers by fractions, you simply need to just multiply the whole number by the reciprocal of the fraction. in other words, flip the fraction.

Ex.

12 ÷ 1/4

12 x 4

Ex. 2

12 ÷ 1/2

12 x 2

Vanyuwa [196]2 years ago

3 0

The answer is 12=2 I think the top answer is correct

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What is the measure of the sum of all angles in a regular dodecagon (12 sides)? What is the measure of one of its interiors angl

lana66690 [7]

Answer:

Part a) The measure of the sum of all angles in a regular dodecagon is equal to 1,800 degrees

Part b) The measure of one of its interiors angles is 150 degrees

Part c) The measure of one of its exterior angles is 30 degrees

Step-by-step explanation:

Part a) What is the measure of the sum of all angles in a regular dodecagon (12 sides)

we know that

The formula to calculate the sum of the interior angles in a regular polygon is equal to

$S=(n-2)180^o$

where

n is the number of sides of regular polygon

In this problem a regular dodecagon has n=12 sides

substitute

$S=(12-2)180^o$

$S=(10)180^o$

$S=1,800^o$

Part b) What is the measure of one of its interiors angles?

To find out the measure of one of its interior angles, divide the sum of all angles by the number of sides

$1,800^o/12=150^o$

Part c) What is the measure of one of its exterior angles?

we know that

The sum of one interior angle and its corresponding exterior angle must be equal to 180 degrees

Let

x ---> the measure of one exterior angle

$150^o+x=180^o$

solve for x

$x=180^o-150^o$

$x=30^o$

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3 years ago

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vazorg [7]

Answer:

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Step-by-step explanation:

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3 years ago

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kherson [118]

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Answer:

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