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nignag [31]
2 years ago
9

Find the value of a

Mathematics
2 answers:
Artist 52 [7]2 years ago
6 0

81° + a° + 2a° = 180°

81° + 3a = 180°

3a = 180 - 81

3a = 99°

a = 99 ÷ 3

a = 33°

Therefore , a = 33° .

Gwar [14]2 years ago
3 0

Answer:

45

Step-by-step explanation:

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25.
bulgar [2K]

Using the slope concept, it is found that the angle between the ladder and the floor will be of 33.69º.

<h3>What is a slope?</h3>

The slope is given by the <u>vertical change divided by the horizontal change</u>, and it's also the tangent of the angle of depression.

In this problem, we have that:

  • The angle is of 45º.
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Hence:

tan(45º) = h/3.

1 = h/3.

h = 3 m.

If the ladder slides 1 m down, the height will be of 2m, hence the angle will be given as follows:

\tan{\theta} = \frac{2}{3}

\theta = \arctan{\left(\frac{2}{3}\right)}

\theta = 33.69^\circ

More can be learned about the slope concept at brainly.com/question/18090623

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1 year ago
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Dmitry [639]

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3 years ago
Which is the axis of symmetry of a parabola with y^2=-8x^2
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3 years ago
Does the mixed number 4 3/4 make each equation true? Choose Yes or No for each equation.
zhuklara [117]

Answer:

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Step-by-step explanation:

3 0
2 years ago
Read 2 more answers
Please, can someone help???
Kipish [7]

Answer:

using sas both C angles are the same because of vertical angles

since what is given we find that BD and AE are straight lines meaning that BA and ED are parallel

this means that angle B is congruent to angle D and the same for A and E

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Step-by-step explanation:

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