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Ber [7]
3 years ago
6

Hello everyone! if anyone knows how to do trigonometry please answer my question (with as much detail as you can) as im a little

bit stuck thank youuu in advance :)
Find the size of all angles of a right angled triangles with sides 12cm, 13cm and 5cm
Mathematics
1 answer:
Gemiola [76]3 years ago
7 0

Answer:

AB = 5cm

AC = 12cm

BC = 13cm

A = 90 deg

B= arctan(AC/AB)=arctan(12/5) =67.38 deg

C=arctan(AB/AC) =arctan(5/12) = 22.62 deg

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If
arlik [135]

Given:

In a right angle triangle θ is an acute angle and \tan\theta =\dfrac{3}{5}.

To find:

The value of \cos \theta.

Solution:

In a right angle triangle,

\tan \theta=\dfrac{Perpendicular}{Base}

We have,

\tan\theta =\dfrac{3}{5}

It means the ratio of perpendicular to base is 3:5. Let 3x be the perpendicular and 5x be the base.

By using Pythagoras theorem,

Hypotenuse=\sqrt{Perpendicular^2+base^2}

Hypotenuse=\sqrt{(3x)^2+(5x)^2}

Hypotenuse=\sqrt{9x^2+25x^2}

Hypotenuse=\sqrt{34x^2}

Hypotenuse=x\sqrt{34}

In a right angle triangle,

\cos \theta=\dfrac{Base}{Hypotenuse}

\cos \theta=\dfrac{5x}{x\sqrt{34}}

\cos \theta=\dfrac{5}{\sqrt{34}}

Therefore, the value of \cos \theta is \dfrac{5}{\sqrt{34}}.

8 0
2 years ago
Can someone help me please?
morpeh [17]
Heya bro!!

------------------------------------

If uh r asking about scientific notification then x must be in lowest form but decimal point is after 1.

So correct answer is 1.04 * 10^2 .

If uh wanna check multiply it.. Uh will get 104.

Hope it helps uh!
5 0
3 years ago
Select the correct locations on each number line.
alexandr402 [8]

Answer:

girl joi for help all

tmy-kvfr-koh

4 0
3 years ago
If 3 bean bags were tossed onto the above board
omeli [17]

Answer:

I dont understand the question if you're talking about the game then the points are 0

Step-by-step explanation:

4 0
3 years ago
Avery types a 42 word paragraph in 2/3 minute. What is her typing speed in words per
satela [25.4K]

Answer:

Step-by-ste63p explanation:

2/3 = 42

1/3 = 42 ÷ 2

     =21

3/3 is 1 min

3/3 = 21 x 3

     = 63

5 0
3 years ago
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