Question

X, Y and Z are three points on a map. Y is 85km and on a bearing of 190° from X. Z is on a bearing of 140°, from Y. Z is due south of X. Calculate the distance between X and Z rounded to 1 DP

Answer 1

Answer:

The distance between X and Z is approximately 95.99 km

Step-by-step explanation:

• Given, X, Y and Z are three points on a map. Y is 85km and on a bearing of 190° from X. Z is on a bearing of 140°, from Y. Z is due south of X.

(For Diagram Please Find in Attachment)

• Thus, The parameters are

The distance of Y from X = 85 km

The bearing of Y from X = 190°

The bearing of Z from Y = 140°  

The bearing of Z from X = 180°

Now,  

• In triangle XYZ, we have

∠YZX = 180° - (130° + 10°) = 40°

• Therefore, Apply the sine rule here, we get

(85 km)/sin(40°) = XZ/(sin(130°))

XZ = sin(130°) × (85 km)/sin(30°) ≈ 95.99 km

The distance between X and Z ≈ 95.99 km