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Vlada [557]
3 years ago
10

Requesting Help,

Mathematics
2 answers:
Arada [10]3 years ago
7 0

Answer: option C is the correct answer.

Step-by-step explanation:

In a cube, all the sides are equal.

The cube shown is 2 centimeters on all sides. The diagonal forms a right angle triangle with the sides of the cube with the diagonal representing the hypotenuse of the right angle triangle.

To determine the diagonal of the face of the cube,y, we would apply Pythagoras theorem which is expressed as

Hypotenuse² = opposite side² + adjacent side²

Therefore

y² = 2² + 2² = 4 + 4

y² = 8

y =√8

To determine the diagonal of the cube, x,

x² = 2² + y²

x² = 2² + (√8)² = 4 + 8

x² = 12

x √12 = 3.5 cm rounded to the nearest tenth.

Tanzania [10]3 years ago
5 0

Answer:

2\sqrt{3} or 3.5 cm.

Step-by-step explanation:

Here we'll need a bit of right angle trig.

z^{2} + y^{2} = x^{2}, where x is the hypotenuse, and z and y are the opposite and adjacent sides. We can determine y by using the formula for the diagonal of a square, which is s\sqrt{2 }. So, y =  2\sqrt{2 } and z = 2.

Therefore, we see that x = \sqrt{(2\sqrt{2})^{2} + (2)^{2}  } = \sqrt{8+4} =\sqrt{12} = 2\sqrt{3}

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butalik [34]

Answer:

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Step-by-step explanation:

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6 0
3 years ago
An electrician leans an extension ladder against the outside wall of a house so that it reaches an electric box 20 feet up. The
Nikolay [14]

The length of the ladder nearest hundredth of a foot is 23 feet.

We have given that,

An electrician leans an extension ladder against the outside wall of a house so that it reaches an electric box 20 feet up.

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<h3>What is the sin ratio?</h3>

sin(\theta)=\frac{perpendicular \ side}{hypotenous}

Therefore we get,

\implies\frac{22}{H} =sin(77)

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7 0
1 year ago
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nikitadnepr [17]

Answer:

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