MATHEMATICS MIDDLE SCHOOL

A 14 foot ladder is used to scale a 13 foot wall.At what angle of elevation must the ladder be situated in order to reach the top of the wall?

Answers

Answer 1
Answer:

The angle of elevation must be 68.202 degrees

Solution:

Given that, 14 foot ladder is used to scale a 13 foot wall

We have to find the angle of elevation must the ladder be situated in order to reach the top of the wall

The figure for this solution is attached below

The ladder, wall and the ground forms a right angled triangle

ABC is a right angled triangle

AB is the height of wall = 13 feet

AC is the length of ladder = 14 feet

We have to find the angle of elevation

Let the angle of elevation be "x"

For right angled triangle ABC, We can use the definition for sine

\sin x=\frac{\text { opposite }}{\text { hypotenuse }}

Here, in figure, opposite = AB and hypotenuse = AC

\sin x=(A B)/(A C)\n\n\sin x = (13)/(14)\n\n\sin x = 0.9285\n\nx = sin^(-1)(0.9285)\n\nx = 68.202

Thus the angle of elevation must be 68.202 degrees
Answer 2
Answer:

The angle of elevation the ladder will be situated in order to reach the top of the wall is 68°.

What is a right triangle?

A right triangle has one of its angles as 90 degrees. The angle of elevation can be found using trigonometric ratios.

Therefore, the angle of elevation can be calculated as follows;

The length of the ladder is the hypotenuse.

The opposite side is the height of the wall.

Therefore,

sin ∅ = opposite / hypotenuse

sin ∅ = 13 / 14

∅ = sin⁻¹ 0.92857142857

∅ = 68.2129901712

∅ = 68°

learn more on right triangle here: brainly.com/question/22479729

#SPJ5

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Answers


How sad, that you didn't include the list of choices.

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a. 2.5 b. 0.4 c. 2.67 d. 0.375

Answers

It's A. 2.5

It's not B that person is wrong.

Answer:

A

Step-by-step explanation:

Yeah

The prism has a surface area of 202 ft2.What would the surface area of the prism be if each dimension were tripled?



ft2

Answers

Let's call the dimensions of the prism (I will assume it is rectangular) a, b, and c.

The surface area is:

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The dimensions of the new prism are 3a, 3b, and 3c.

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What is absolute value of 0.15?

Answers

The absolute value of |0.15| is 0.15 (C).

It is neither a negative number nor a positive because it is a decimal. Yet it is like a negative number. Hope this helps!
it is |0.15| = 0.15
and that is how you find it because absolute value is always positive of the given number.

Ending time 10:08 A.M.
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Answers

The Time started is 9:38
the correct answer is 9:38 AM hoped this helped 

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O A. The graph of g(x) is the graph of f(x) shifted 2 units to the right
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B. The graph of g(x) is the graph of f(x) shifted 2 units to the left and
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Answers

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