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3 years ago

How do I find Trig ratios

Mathematics

1 answer:

nadya68 [22]3 years ago

8 0

Trig ratios can only be used on right triangles with acute measures.

If given an angle and there are adjacent and opposite sides, then use tan(opposite/adjacent)

If given an angle and there is an adjacent side and a hypotenuse, then use cosine(adjacent/hypotenuse)

If given an angle and there is an opposite and adjacent side, then use sin(opposite/hypotenuse)

A common mnemonic device used to memorize the trig rules is SOH-CAH-TOA

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A bird (B) is spotted flying 6,000 feet from a tower (T)). An observer (O) spots the top of the tower (T) at a distance of 9,000

Nina [5.8K]

Answer:

The angle will be "48.7°".

Step-by-step explanation:

In ΔTBO, the given values are:

TB = 6,000 feet

BO = 9,000 feet

Now,

To find the angle,

⇒ $Cos \ B =\frac{TB}{BO}$

On putting the estimated values, we get

⇒ $Cos \ x=\frac{6000}{9000}$

⇒ $Cos \ x=0.66$

⇒ $x=Cos^{-1} \ 0.66$

⇒ $x=48.7^{\circ}$

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3 years ago

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shutvik [7]

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3 years ago

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Which relation is a function?

IceJOKER [234]

Answer:

The bottom right option

Step-by-step explanation:

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3 years ago

PLEASE HELP IM ON A TIME LIMIT :(

Mice21 [21]

Answer:

hey hope this helps

<h3 /><h3>Comparing sides AB and DE </h3>

AB =

$\sqrt{ {1}^{2} + {1}^{2} }$