Alexa's friends got her a skydiving lesson for her birthday. Her helicopter took off from the skydiving center, ascending in an angle of 20^\circ20 ∘ 20, degrees, and traveled a distance of 3.43.43, point, 4 kilometers before she fell in a straight line perpendicular to the ground.
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Thus the distance is D = 3.19 Km
Step-by-step explanation:
- The helicopter ascends from the skydiving centre at an angle of 20°.
- The helicopter travels for 3.4 km.
- Alexa fell straight line perpendicular to the ground.
To Find:
The distance between the skydiving centre and the place Alexa land.
Formula needed:
Cos θ = Adjacent / hypotenuse
Now find the distance:
Cos θ = Adjacent / hypotenuse
Let the distance be D.
cos (20) = D / 3.4
D = 3.4 x cos (20)
D = 3.19 Km
Thus the distance is D = 3.19 Km
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