The distance of the fire from Killarney is 400m
How to determine the distance
From the information given , we have the following deductions:
- height of the helicopter, adjacent side of the triangle is 850m
- Angle of depression , θ is 25°
- Distance of fire from Killarney, opposite side is 'x' m
Now, let's use the tangent identity
tan θ = opposite/ adjacent
Substitute the values into the formula
tan 25 = x/ 850
Find the value of tan 25 and add into the equation:
0. 4663 = x/ 850
Cross multiply
x = 850 × 0. 4663
x = 396. 36 m
We know that the distance of the fire from Killarney is designated 'x' and the value of 'x' is 396. 36m
Rounding the number to the nearest whole number gives 400m
Thus, the distance of the fire from Killarney is 400m
Learn more about bearing and distance here:
https://brainly.com/question/24142612
#SPJ1
