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.
How far from the skydiving center did Alexa land?
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Complete question:
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° and traveled a distance of 3.43 kilometres before she fell in a straight line perpendicular to the ground. How far from the skydiving center did Alexa land?
Answer:
The distance between the skydiving center and the place Alexa land is 3.19 kilometre.
Step-by-step explanation:
The ascending of the helicopter and the fall of Alexa forms a right angled triangle.
cos θ = (Adjacent side)/(Hypotenuse)
Adjacent side = Distance between skydiving center and Alexa landing
cos (20) = (Adjacent side)/3.4
Adjacent side = 3.4 × cos (20)
∴ Adjacent side = 3.19 Km
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