2 years ago

Express cos K as a fraction in simplest terms.

Mathematics

1 answer:

nata0808 [166]2 years ago

4 0

Answer:

4/5

Step-by-step explanation:

In a right triangle such as this one

cos (angle) = adjacent leg / hypotenuse

cos(k) = KL / 15

You will need to find the leg length KL using Pythagorean Theorem

15^2 = 9^2 + (KL)^2 KL = 12

then cos k = 12/15 = 4/5

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