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34 votes
34 votes
Please I really need help

Please I really need help-example-1
User Niklascp
by
3.0k points

1 Answer

19 votes
19 votes

Answer:

NM = 17, LY = 5, m<NLY = 53.13 degrees, m<NMY = 28.07 degrees

Explanation:

To solve for NM, you just use the Pythagorean theorem,


8^(2) + 15^(2) = x^(2)

64 + 225 =
x^(2)

289 =
x^(2)


17 = x

To solve for LY, you can use geometric mean,


(10)/(y) = (15+y)/(10)\\\\100 = 15y + y^(2) \\y^(2) +15y - 100 = 0\\(y+20)(y-5) = 0\\y= 5

To solve for the other angles, use the inverse.

Sin-1, = 8/10

= 53.13

Other angle =

Tan-1 = 8/15

= 28.07

Hope this helps, I put a lot of time into this :)

User Holmexx
by
2.8k points
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