In right traingle ABC, m
It was on a practice test and I completely guessed and got it right...answer=17. Can someone explain how to get this?
2007-11-18 10:21:12 · 5 answers · asked by Racccchel. 4 in Science & Mathematics ➔ Mathematics
m means measure
2007-11-18 10:25:10 · update #1
Wow, I feel so dumb right now. I completely forgot about SOHCAHTOA! RRRRRRR!
Thanks everyone.
2007-11-18 10:28:51 · update #2
Draw a picture of right triangle ABC.
Do cosine because you are trying to find the hypotenuse of the triangle.
cos 55 = 10/x
x is a hypotenuse
Do the cross multiply thingy.
cos 55/1=10/x
cos 55x=10
x=17.434
x=17.0
2007-11-18 10:27:39 · answer #1 · answered by Anonymous · 0⤊ 0⤋
10/AB = cos 55
AB = 10/cos 55 = 17.43 = 17 to nearest integer
2007-11-18 18:26:23 · answer #2 · answered by ironduke8159 7 · 0⤊ 0⤋
AB = CA sec 55degees = 10 sec 55 deg
(sorry I don't have any trigonometric tables of secent, you help me and get it)
2007-11-18 18:29:01 · answer #3 · answered by sv 7 · 0⤊ 0⤋
10/x=cos55
x/10=1/cos55
x=10cos55= 17.43 or 17
2007-11-18 18:26:20 · answer #4 · answered by chasrmck 6 · 0⤊ 0⤋
what is m first of all???/
2007-11-18 18:24:42 · answer #5 · answered by Someone 4 · 0⤊ 0⤋