A
9-
From the top of a 25 m high cliff, the angle
of depression of a jet ski at point...
Mathematics, 07.02.2022 14:00 masonroe0
A
9-
From the top of a 25 m high cliff, the angle
of depression of a jet ski at point A is 20°.
The jet ski moves in a straight line towards
the base of the cliff so that its
angle of depression 5 s later
at point B is 30°.
a Calculate the distance AB.
b Find the average speed of
the jet ski in kilometres/hour.
Answers: 2
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