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Rishu is riding in a hot air balloon.after a point p,he spots a car parked at b on the ground an angle of depression of 30°.the ba

By Lydia

Rishu is riding in a hot air balloon.after a point p,he spots a car parked at b on the ground an angle of depression of 30°.the balloon rises further by 50 metres and now he spot the same car at angle of an angle of depression of 45°and a lorry parked at b ‘at an angle of depression of 30°.

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Lydia


A car moving with a constant speed of 10m/s covers two rounds of a circular track in 10s. Find
the radius of circular t

1. Ratio of areas of two similar triangles is
9:25. is the ratio of their
corresponding sides. *​

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