What are the values of x and y?

Question

asked Jun 28, 2022 132k views

2 Answers

ARIF MAHMUD RANA · Answer 1 · 2022-07-01T01:41:02+0000

Answer:

option 2

Explanation:

Using the cosine and sine ratios in the right triangle and the exact values

cos30° =
(√(3) )/(2) , sin30° =
(1)/(2)

cos30° =
(adjacent)/(hypotenuse) =
(x)/(20√(3) ) =
(√(3) )/(2) ( cross- multiply )

2x = 60 ( divide both sides by 2 )

x = 30

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sin30° =
(opposite)/(hypotenuse) =
(y)/(20√(3) ) =
(1)/(2) ( cross- multiply )

2y = 20
√(3) ( divide both sides by 2 )

y = 10
√(3)