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DENIUS [597]
3 years ago
11

Find the value of each variable. Give exact answers.

Mathematics
1 answer:
mezya [45]3 years ago
8 0

Answer:

See below

Step-by-step explanation:

<u>Finding a:</u>

\displaystyle sin (\theta) = \frac{opposite }{hypotenuse}

Where θ = 45° , opposite = a, hyp = 4√2

\displaystyle sin (45)=\frac{a}{4\sqrt{2} } \\\\\frac{1}{\sqrt{2} } = \frac{a}{4\sqrt{2} } \\\\1 = \frac{a}{4} \\\\\boxed{a = 4}

<u>Finding c:</u>

\displaystyle tan (\theta) = \frac{opposite }{adjacent}

Where θ = 45°, opposite = 4, adjacent = c

tan 45 = 4 / c

1 = 4 / c

Multiply both sides by c

c = 4

<u>Finding b:</u>

\displaystyle sin(\theta) = \frac{opposite}{hypotenuse}

Where θ = 30°, opposite = a(4), hypotenuse = b

sin 30 = 4 / b

\displaystyle \frac{1}{2} = \frac{4}{b}

Cross Multiply

1 * b = 4 * 2

b = 8

<u>Finding d:</u>

\displaystyle tan (\theta) = \frac{opposite }{adjacent}

Where θ = 30°, opposite = a(4) , adjacent = d

tan 30 = 4 / d

\displaystyle \frac{1}{\sqrt{3} } = \frac{4}{d} \\\\

Cross Multiplying

1 * d = 4√3

\boxed{d = 4\sqrt{3}}

\rule[225]{225}{2}

Hope this helped!

<h3>~AH1807</h3>

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