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3 years ago

A circle has a circumference of 28.36 units what is the diameter of the circle

Mathematics

2 answers:

zalisa [80]3 years ago

7 0

Answer:

The diameter of the circle is 9.03 units

Step-by-step explanation:

The formula for calculating the circumference of a circle is $C=\pi d$ .

From the question, the diameter of the circle is 28.36 units.

Since the circumference is rounded to the nearest hundredth, we substitute $\pi=3.14$ and $C=28.36$ into the formula and solve for d.

$\implies 28.36=3.14d$

Divide both sides by 3.14

$\implies \frac{28.36}{3.14}=\frac{3.14d}{3.14}$

$\implies 9.03=d$ .

Hence the diameter of the circle is 9.03 units to the nearest hundredths

kicyunya [14]3 years ago

3 0

Answer:

d= 9.032 units

Step-by-step explanation:

Given

$Circumference = 28.36$

We will use the formula for circumference of a circle to find it's radius and then diameter will be found using radius.

So,

$C=2\pi r\\Putting\ the\ value\ of\ \pi and \C\\28.36 = 2 * 3.14 *r\\28.36=6.28* r\\r=\frac{28.36}{6.28}\\ r=4.516\ units$

Now to find the diameter:

d = r*2

d = 4.516*2

d= 9.032 units

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posledela

the complete question is

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8 0

3 years ago

Noah drank 4 5 liter of water Monday before going jogging. He drank 2 3 liter of water after his jog. How much water did Noah dr

vredina [299]

This question is not correctly written

Correct question

Noah drank 4/5 liter of water Monday before going jogging. He drank 2/3 liter of water after his jog. How much water did Noah drink altogether? Write your answer as a mixed number.

Answer:

$1\frac{7}{15}$

Step-by-step explanation:

Noah drank 4/5 liter of water Monday before going jogging. He drank 2/3 liter of water after his jog.

To find the total liters of water he drank, we should add up the liter of water he drank on Monday before going jogging and liter of water after his jog.

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Find the Lowest Common Multiple for 5 and 3 , which is 15.

= [(4×3) + (2×5)] /15

= 12 + 10/ 15

= 22/15

As a mixed Fraction, the answer

= $1\frac{7}{15}$

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