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3 years ago

The lengths of angles given represent the sides or angles of a triangle.

Mathematics

1 answer:

Dafna1 [17]3 years ago

4 0

Answer:

Step-by-step explanation:

Comparing the sides: 20 = 12 + 8.

The largest side must be less than the sum of the other 2 sides for there to be a triangle.

No triangle can have these dimensions.

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Answer:

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Step-by-step explanation:

Trigonometric Identities

$\cos(A \pm B)=\cos A \cos B \mp \sin A \sin B$

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where:

$\theta$ is the angle
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Using the trig ratio formulas for cosine and sine:

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I hope my answer has come to your help. Thank you for posting your question here in Brainly. We hope to answer more of your questions and inquiries soon. Have a nice day ahead!

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