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In ΔWXY, the measure of ∠Y=90°, XW = 61, WY = 60, and YX = 11. What ratio represents the sine of ∠W?

2 Answers

11 votes

Final answer:

The ratio representing the sine of ∠W in ΔWXY, with given side lengths, is 60/61, which is approximately 0.9836.

Step-by-step explanation:

To find the sine of ∠W in ΔWXY, where ∠Y is a right angle (90°), we must first identify the lengths of the sides of the triangle in relation to ∠W. Since WY is the side opposite to ∠W, and WX is the hypotenuse, the sine of ∠W is calculated using the ratio of the opposite side over the hypotenuse in a right-angled triangle.

The formula to find the sine of an angle in a right-angled triangle is:
sin(∠W) = opposite/hypotenuse

In this case:
sin(∠W) = length of WY / length of XW

= 60 / 61

= 0.9836 (to four decimal places)

Therefore, the ratio representing the sine of ∠W is 60/61, which approximately equals 0.9836 when calculated to four decimal places. Keep in mind that the sine function is dimensionless, therefore the ratio is simply the numerical values without any units.

User Robert Diamond
by
4.9k points
10 votes

Answer:

11/61

Step-by-step explanation:

from trigonometry ratio sin w= Opp/hyp

opp = 11

hyp =61

therefore sin w =11/61

In ΔWXY, the measure of ∠Y=90°, XW = 61, WY = 60, and YX = 11. What ratio represents-example-1
User Jim D
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4.3k points