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3 years ago

If the perimeter of the surface of a cube is 12 metre,then what is the volume of it?

Mathematics

1 answer:

Katyanochek1 [597]3 years ago

6 0

Answer:

A cube is a solid box whose every surface is a square of same area. ... So the volume of the box will be equal to the volume of 8 unit cubes together. ... The number of cubes are 12, its volume is 12 cu cm. 3. ... When we draw a flat shape on a paper, it occupies a certain ... It's unit is square centimeters or square meters etc.

Step-by-step explanation:

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The grassy area of a playground has a side length of x and a side of width of x + 3 what is the area of the playground?

Kipish [7]

Answer:

Step-by-step explanation:

We assume this playground is a rectangle. The area of a rectangle is of the form: A = lw, where l is the length and w is the width.

Here, the length is l = x and the width is w = x + 3. So, plug these in:

A = lw

A = x(x + 3)

Expand this out:

A = x² + 3x

The answer is thus A.

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3 years ago

Read 2 more answers

The radius of a circular track is 0.2 mile. Ellie ran around 3 times. How many kilometers did she run

My name is Ann [436]

Circumference = 2πr
So the circumference of the track is C = 2π .2 or .4π
3 times around the track is .4π x 3 or 1.2π - this is the answer but most teachers will want you to use 3.14 for pi.
so 1.2 x 3.14 = 3.768 km

Do you notice that I waited until the end to use the actual value of pi (3.14) in my calculations.
Keeping things in pi units until the very end saves time.

6 0

3 years ago

A rhombus has its diagonals 7cm and 6 cm whats its area

ipn [44]

$\large\frak{ Given :}$

Diagonal of a rhombus = 7 cm and 6 cm

$\large\frak{Find:}$

Area of a rhombus

$\large\frak{Explanation :}$

$\small\tt Area = \frac{1}{2}× d¹ × d²$

<u>Where,</u>

d¹ = length of diagonal 1
d² = length of diagonal 2

$\implies \small\tt{ \frac{1}{2} \times 7 \times 6}$

$\implies\small\tt{ \frac{1}{2} \times 42 }$

$\implies \small\tt{Area = 21 {cm}^{2} }$

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2 years ago

The length of the base of a triangle is twice its height. if the area of the triangle is 44 square kilometers, find the height

xeze [42]

Let
$x$
be the height of the triangle.

Formular for area of Triangle
= ½ × base × height

thus,
${ \frac{1}{2} }(2x)(x)=44\ kilometers^2$

Simplifying
$x^2=44\ kilometers^2 \\\\ x= \sqrt{ 44 } \\\\ x=6.63\ kilometers$

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3 years ago

An irregular polygon is shown below:

elena-14-01-66 [18.8K]

4*2=8, 4-2=2, 2*9=18, 18+8= 26
26 is the answer

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3 years ago

Read 2 more answers

If the perimeter of the surface of a cube is 12 metre,then what is the volume of it?​

If the perimeter of the surface of a cube is 12 metre,then what is the volume of it?