4 years ago

The diagonal of a square is 10 cm how do I find out the length and the width

1 answer:

8 0

Well we know that the formula for a diagonal is: $d= \sqrt{2} a$ so using this we can conclude that the length and the width of this particular square would be 7.071 cm. Hope this helps!

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The total surface area of a cone whose radius is 2 r and slant height 2l is

vampirchik [111]

Answer:

$A=4\pi r(l+r)$

Step-by-step explanation:

The total surface area of a cone is given by :

$A=\pi rl+\pi r^2\\\\=\pi r(l+r)$

Put r = 2r and l = 2l in the above formula

$A=\pi \times 2r(2l+2r)\\\\A=2\pi r(2l+2r)\\\\=2\pi r \times 2(l+r)\\\\=4\pi r(l+r)$

Hence, the total surface area of the cone is $4\pi r(l+r)$ .

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3 years ago

Which of the following fractions is equivalent to 0.45?<br> 45/1000<br> 3/10<br> 9/20<br> 5/9

-Dominant- [34]

In Order To Find The Answer To this quetsion,you have to divide each set of fractions by them selfs and there for 9/20 and 45/1000 are the closest ones.
Divide 45/1000=0.045 but Divide 9/20=0.45 and that is your answer.

8 0

3 years ago

Read 2 more answers

Plz help there is picture

Elenna [48]

Answer:

the first one is right ahaha

Step-by-step explanation:

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3 years ago

If a turtle walk 2 yards then 10 in then 3 ft how many inches did it walk in all

ki77a [65]