Answer:
20.2 miles
Step-by-step explanation:
This can be described by the three sides of a right angled triangle. Let the distance of the glider to the airport be represented by x, applying the Pythagoras theorem:
[tex]/hyp/^{2}[/tex] = [tex]/adj1/^{2}[/tex] + [tex]/adj2/^{2}[/tex]
[tex]/24/^{2}[/tex] = [tex]/x/^{2}[/tex] + [tex]/13/^{2}[/tex]
576 = [tex]x^{2}[/tex] + 169
[tex]x^{2}[/tex] = 576 - 169
= 407
x = [tex]\sqrt{407}[/tex]
= 20.1742
x = 20.2 miles
The glider has to fly 20.2 miles to return to the airport.