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height of balloon above the girl=88.2-1.2
=87 m
in Δ abc
tan 30=bc/ab
1/√3=87/ab
ab=87*√3
=150.684 m
inΔade
tan 60=de/ad
√3=87/ad
ad=87*√3/3 (multiplied and divided by√3 to numerator and denominator)
ad=29*√3
=50.228 m
distance travelled by balloon (bd)=ab-ad
=(150.648-50.228) m
=100.42 m
Ksuprith4:
tanks for sending answers
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