Welcome :: Homework Help and Answers :: Mathskey.com
Welcome to Mathskey.com Question & Answers Community. Ask any math/science homework question and receive answers from other members of the community.

13,459 questions

17,854 answers

1,446 comments

805,805 users

Trigonometry help?

0 votes

Trigonometry help?

asked Nov 18, 2014 in PRECALCULUS by anonymous

2 Answers

0 votes

(4)

The angle of depression is 7° .

The height of the 650 m above ground .

Let the horizontal distance between plane and boat is x .


From the figure tan ϴ = opposite side length / adjacent side length 

                      tan 7 =  650 / x     

                ⇒ x = 650 /  tan 7  = 650 / 0.122 = 5293.825 m

So the horizontal distance between plane and boat is 5293.825 m .

answered Nov 18, 2014 by yamin_math Mentor
0 votes

(5)

The angle of depression is 35° .

The height of the cliff is 175 cm above ground .

Let the distance between base of cliff to boat is x .

From the figure tan ϴ = opposite side length / adjacent side length 

                      tan 35 =  175 / x     

                ⇒ x = 175 /  tan 35  = 175 / 0.7002 = 249.92 cm

So the distance between base of cliff to boat is  249.92 cm .

answered Nov 18, 2014 by yamin_math Mentor

Related questions

asked Nov 18, 2014 in TRIGONOMETRY by anonymous
asked Nov 18, 2014 in TRIGONOMETRY by anonymous
asked Oct 20, 2014 in ALGEBRA 1 by anonymous
asked Feb 10, 2015 in CALCULUS by anonymous
asked Sep 25, 2014 in ALGEBRA 2 by anonymous
asked Sep 11, 2014 in TRIGONOMETRY by anonymous
asked Jul 24, 2014 in TRIGONOMETRY by anonymous
asked Jul 16, 2014 in ALGEBRA 2 by anonymous
asked Jul 16, 2014 in TRIGONOMETRY by anonymous
...