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3 years ago

Question in picture.

Physics

2 answers:

Julli [10]3 years ago

7 0

<h3><u>Answer</u>;</h3>

= 0.6

<h3><u>Explanation</u>;</h3>

Using Pythagoras theorrem

Base² + height ² = Hypotenuse²

Thus;

Base² = 15² - 12²

= 81

Base = √81 = 9

But; cosine = adjacent/hypotenuse

Hence; cos θ = 9/15

= 0.6

konstantin123 [22]3 years ago

5 0

<h2>Answer:</h2>

<u>The right choice is </u><u>(A) 0.60</u>

<h2>Explanation:</h2>

As we know

CosФ = base / hypotenuse

We dont have base so we can find it by Pythagorean Theorem

Hypotenuse² = Base² + height ²

Arranging for Base we get

Base² = 15² - 12²

Base² = 81

Taking square root on both sides

Base = √81 = 9

Now put this in the formula of cosФ

CosФ = base / hypotenuse

cos θ = 9/15

θ = cos⁻¹ (9/5)

which is 0.06

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