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3. From P a plane flies due west for 156 km. to Q and turns to the right at an angle in excess of 90°. The plane flies at this new bearing until it reaches R, which is due north of P. R is 732 km. from P.

a) Find the distance from Q to R.
b) Find the total distance flown.
c) Determine the bearing of point R from point Q.
Can you please do everything step by step on photo with bearing? Thanks.​

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Answer: I don't have the capability to create or share images. However, I can provide the step-by-step solution to the problem as text:

To solve this problem, we can use the cosine and sine rules in trigonometry. Let's first draw a diagram to represent the situation:

R

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732 km |

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Q----------------P

a) To find the distance from Q to R, we need to first find the length of the side QR of the triangle PQR. We can do this by using the cosine rule:

cos(QPR) = (QP^2 + QR^2 - PR^2) / (2 * QP * QR)

Since angle QPR is a right angle, we have:

cos(QPR) = 0

Substituting the given values, we get:

0 = (156^2 + QR^2 - 732^2) / (2 * 156 * QR)

Simplifying and solving for QR, we get:

QR = sqrt(732^2 - 156^2) / 2.4 ≈ 269.3 km

Therefore, the distance from Q to R is approximately 269.3 km.

b) To find the total distance flown, we need to add up the distances PQ and QR. We have:

PQ = 156 km (given)

QR ≈ 269.3 km (from part a)

Total distance = PQ + QR ≈ 425.3 km

Therefore, the total distance flown is approximately 425.3 km.

c) To determine the bearing of point R from point Q, we need to find the angle QRS. We can do this by using the sine rule:

sin(QRS) / QR = sin(QRP) / PR

Since angle QRP is a right angle, we have:

sin(QRP) = PQ / PR

Substituting the given values, we get:

sin(QRS) / QR = 156 / 732

Simplifying and solving for sin(QRS), we get:

sin(QRS) = (156 / 732) * QR ≈ 0.203

Using the inverse sine function, we find that:

QRS ≈ 11.75°

Since the plane turned to the right at an angle in excess of 90°, the bearing of point R from point Q is:

Bearing of R from Q = 270° + QRS ≈ 281.75°

Therefore, the bearing of point R from point Q is approximately 281.75°.

Explanation:

User EdwardTeach
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