Question

Look at the figure.
What is the length of segment KM?

14.1 inches

17.3 inches

10 inches

20 inches

Answer 1

@Pynewn can you help

Answer 2

you can use the sine rule or your the trigonometry knowledge

Answer 3

opposite/hypotenuse..... then what?

Answer 4

using sine rule.
it says: \[\frac{ A }{ \sin (\theta) }=\frac{ B }{ \sin(\alpha) }\],provided angles and opposite sides

Answer 5

let B=10,\[\theta=30\]and \[\alpha=90\]

Answer 6

or you can find the hypo. side\[\sin(30)=\frac{ 10 }{ RM }\], than solve for RM, which is equal to 20in.

Answer 7

use sin

sin(30) = 10/x find x

Answer 8

why don't you just use sine, since triangle KMN is a right triangle?

Answer 9

Hold on yea i was gonna ask the same @Pynewn @Data_LG2

Answer 10

like @ivettef365 just posted

Answer 11

anyways it's 20 inches

Answer 12

correct

Answer 13

yeap I was just showing the two ways of finding the ans.

Answer 14

well either way you explained it help me so thanks @Pynewn

Answer 15

you are welcome

Answer 16

\[\text{KM}=10\text{ Csc}[30{}^{\circ}]=20 \]