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Find k. Write your answer in simplest radical form.

Find k. Write your answer in simplest radical form.-example-1
User Hamza AZIZ
by
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1 Answer

6 votes

Answer:

k = 5
√(3)

Explanation:

using the cosine ratio in the right triangle and the exact value

cos30° =
(√(3) )/(2) , then

cos30° =
(adjacent)/(hypotenuse) =
(k)/(10) =
(√(3) )/(2) ( cross- multiply )

2k = 10
√(3) ( divide both sides by 2 )

k = 5
√(3)

User Ggsplet
by
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