Bytelearn - cat image with glassesAI tutor

Welcome to Bytelearn!

Let’s check out your problem:

In 
/_\WXY,x=450 inches, 
w=220 inches and 
/_W=157^(@). Find all possible values of 
/_X, to the nearest 1oth of a degree.
Answer:

In WXY,x=450 \triangle \mathrm{WXY}, x=450 inches, w=220 w=220 inches and W=157 \angle \mathrm{W}=157^{\circ} . Find all possible values of X \angle \mathrm{X} , to the nearest 1010th of a degree.\newlineAnswer:

Full solution

Q. In WXY,x=450 \triangle \mathrm{WXY}, x=450 inches, w=220 w=220 inches and W=157 \angle \mathrm{W}=157^{\circ} . Find all possible values of X \angle \mathrm{X} , to the nearest 1010th of a degree.\newlineAnswer:
  1. Apply Law of Sines: To find the possible values of angle X, we can use the Law of Sines, which relates the sides of a triangle to its angles. The Law of Sines states that the ratio of the length of a side to the sine of its opposite angle is constant for all sides and angles in a triangle. The formula is:\newlineasin(A)=bsin(B)=csin(C) \frac{a}{\sin(A)} = \frac{b}{\sin(B)} = \frac{c}{\sin(C)} \newlinewhere a,b, a, b, and c c are the lengths of the sides, and A,B, A, B, and C C are the measures of the opposite angles.
  2. Find Angle Y: First, we need to find the measure of angle Y using the fact that the sum of angles in a triangle is 180180 degrees. We have:\newlineW+X+Y=180 \angle W + \angle X + \angle Y = 180^\circ \newlineGiven that W=157 \angle W = 157^\circ , we can write:\newline157+X+Y=180 157^\circ + \angle X + \angle Y = 180^\circ
  3. Express Angle X: To find Y \angle Y , we need to express X \angle X in terms of Y \angle Y or vice versa. Since we don't have any information about X \angle X yet, we can express it as:\newlineX=180157Y \angle X = 180^\circ - 157^\circ - \angle Y \newlineX=23Y \angle X = 23^\circ - \angle Y
  4. Use Law of Sines: Now we can use the Law of Sines to relate the sides and angles. We have:\newlinexsin(X)=wsin(W) \frac{x}{\sin(\angle X)} = \frac{w}{\sin(\angle W)} \newlineSubstituting the given values, we get:\newline450sin(X)=220sin(157) \frac{450}{\sin(\angle X)} = \frac{220}{\sin(157^\circ)}
  5. Calculate Sin X: We can now solve for sin(X) \sin(\angle X) by cross-multiplying and then use the inverse sine function to find X \angle X . However, we must be careful because the inverse sine function can give us an angle less than 9090 degrees, but since X \angle X is supplementary to Y \angle Y , we need to consider that X \angle X could be obtuse (greater than 9090 degrees). Let's first calculate sin(X) \sin(\angle X) :\newlinesin(X)=450sin(157)220 \sin(\angle X) = \frac{450 \cdot \sin(157^\circ)}{220}
  6. Calculate Sin X: We can now solve for sin(X) \sin(\angle X) by cross-multiplying and then use the inverse sine function to find X \angle X . However, we must be careful because the inverse sine function can give us an angle less than 9090 degrees, but since X \angle X is supplementary to Y \angle Y , we need to consider that X \angle X could be obtuse (greater than 9090 degrees). Let's first calculate sin(X) \sin(\angle X) :\newlinesin(X)=450sin(157)220 \sin(\angle X) = \frac{450 \cdot \sin(157^\circ)}{220} Using a calculator to find sin(157) \sin(157^\circ) and then calculating sin(X) \sin(\angle X) :\newlinesin(157)0.999048 \sin(157^\circ) \approx 0.999048 \newlinesin(X)4500.999048220 \sin(\angle X) \approx \frac{450 \cdot 0.999048}{220} \newlinesin(X)2.041 \sin(\angle X) \approx 2.041 \newlineThis value is greater than 11, which is not possible for a sine value. This indicates that there has been a math error in the calculation.

More problems from Find trigonometric functions using a calculator