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3 years ago

Does anyone knows this pleaseee

Mathematics

1 answer:

murzikaleks [220]3 years ago

4 0

Answer:

Step-by-step explanation:

use SOH CAH TOA to remember how sin , cos and tan fit with a triangle

lets use SOH since we have the Hypotenuse and we want to find the Opposite side from the angle.. of 38° then

sin(38) = Opp/ 15

15 sin(38 ) = Opp ( the opposite side is the height of the pole )

4.4455m = Opp

so the flag pole is 4.45 meters tall or close to that

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miskamm [114]

ANSWER

$y = 7 \sqrt{2}$

$x = 7$

EXPLANATION

The given triangle has a right angle.

The side opposite to the 45° angle is 7 units.

To find angle x, we use the tangent ratio.

Recall the mnemonics TOA, which means,

$\tan(45 \degree) = \frac{opposite}{adjacent}$

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$x = 7$

To find y, we use the sine ratio, which means

$\sin(45 \degree) = \frac{opposite}{hypotenuse}$

$\sin(45 \degree) = \frac{7}{y}$

$y= \frac{7}{\sin(45 \degree) }$

$y= \frac{7}{ \frac{1}{ \sqrt{2} } }$

$y = 7 \times \frac{ \sqrt{2} }{1}$

$y = 7 \sqrt{2}$

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