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Geometry Level 2

from the top of a cliff, the angle of depression of a boat on the sea is {22} degree. if the height of the cliff from sea level is 40m, find correct to 2 significant figure, the horizontal distance of the boat from the bottom of the cliff.

16 35 22 99

Samuel Ayinde by samuel ayinde , 24, Nigeria

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2 solutions

Supathat Sukaiem
Jun 10, 2014

tan(22°) = 40/x

x = 99.00

1 Helpful 0 Interesting 0 Brilliant 0 Confused
Samuel Ayinde
Apr 9, 2014

too simple. all you need to do is to use trigonometry ratio SOHCAHTOA using tan=opp/adj tan68= x/40 therefore the unknown which is x= 2.4750*40 =99metre.

0 Helpful 0 Interesting 0 Brilliant 0 Confused

How to find tan(22)or tan(68)??

Sagar Shah - 5 years, 3 months ago

1 pending report

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