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2 years ago

The diameter of a circle is 8 inches. What is the area?

Mathematics

2 answers:

ELEN [110]2 years ago

7 0

16π in²

Step-by-step explanation:

Step 1:

We know that area of circle is given by

A=π * R² units

Where A= Area

R= Radius = (Diameter/2)

Step 2:

Here r= 4 inches

Area = $\pi * 4 *4$

= $16\pi$ in²

lord [1]2 years ago

6 0

The answer is 50.24. First, take the diameter and divide it by two (4). Then, multiply it by itself (16). Lastly, multiply it by pi,(3.14).

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Whats the área of a square whose perimeter is 48

Roman55 [17]

Answer:

144

<h3>Step-by-step explanation:</h3>

If 48 is the perimeter, then 48 divided by 4 is one of the side lengths.

L x W = Area

12 x 12 = Area

12 x 12 = 144

Area = 144

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2 years ago

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Ostrovityanka [42]

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Probability is simply how likely something is to happen.
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1 year ago

1.A cube has side lengths of 15 inches, what is the surface area and volume of the cube? 2. A cube has side lengths of 8 inches,

omeli [17]

Answer:

Cube 1: 3375 cubed inches, 1350 inches squared.

Cube 2: 512 cubed inches, 384 inches squared.

Step-by-step explanation:

Formula for Volume of a Cube: $V=s^3\\$ (s - side length)

Formula for Surface Area of a Cube: $SA=6s^2$ (s- side length)

The side length's 15 inches.

Find the volume:

$V=15^3\\\rightarrow 15*15*15=3375\\\boxed {V=3375}$

The volume of cube one is 3375in³.

Find the surface area:

$SA=6(15)^2\\\rightarrow 15^2 = 225\\SA = 6 * 225\\\boxed {SA=1350}$

The surface area of cube 1 is 1350in².

The side length's 8 inches.

Find the volume:

$V=8^3\\\rightarrow 8*8*8= 512\\\boxed {V=512}$

The volume of cube two is 512in³.

Find the surface area:

$SA=6(8)^2\\\rightarrow 8^2=64\\SA=6*64\\\boxed {SA=384}$

The surface area of cube 2 is 384in².

<em>Brainilest Appreciated. </em>

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2 years ago

Why does the term angle need to be defined prior to defining perpendicular lines?

igor_vitrenko [27]

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8 0

2 years ago

Read 2 more answers

Please help me solve this. 10 points!

olga nikolaevna [1]

Answer:

the answer is:

j= 76

k= 65

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2 years ago