Question

#6/7. Math/Geometry.
*Picture attached in question.*

Answer 1

you need help with questions 6 and 7?

Answer 2

yeah

Answer 3

do you have a calculator or trigonometric tables or something?

Answer 4

@baru
Yes I have a calculator ... what are trig tables?

Answer 5

Trig tables are printed trigonometric values usually found in a trigonometry book.
sin 1 degree = .0175
sin 2 degrees = .034899

Answer 6

Since you have a calculator, you don't need them.

Answer 7

Were you going to ask a question?

Answer 8

So what do I plug in ...or how to i complete the problem ... whats the layout of the steps?
@wolf1728

Answer 9

In trigonometry if you know one angle and one side of a right triangle you can solve for all the other sides and angles.
Looking at fiure 6, we have one side but we need to know an angle.
Let's suppose the angle in the upper left corner of the triangle is angle A. What does angle A measure?

Answer 10

20?

Answer 11

Well, I meant the angle nest to that
I'll redraw that graphic.
Why do they label graphics so rotten?

Answer 12

Angle A plus angle 20 degrees form a right angle. (90 degrees)
Since we already know the 20 degree angle, what does angle A equal?

Answer 13

Angle A plus 20 degrees = 90 degrees
What does Angle A equal?

Answer 14

Gee, is anybody else still "playing" this game?

Answer 15

yeah

Answer 16

sorry i got a call
@wolf1728

Answer 17

70?
@wolf1728

Answer 18

yes, 70

now do you know the definition of 'cosine' of an angle?
or cos(A)

Answer 19

The length of the adjacent side divided by the length of the hypotenuse.
@baru

Answer 20

can you recognize which side is adjacent and which side is the hypotenuse with respect to the angle you just found?

Answer 21

h=x, a= bottom, opp.=300m
@baru

Answer 22

can you look at that and try again?

Answer 23

@CoExist2 are you there??

Answer 24

h=x, a=300, opp.= blank.
@baru

Answer 25

@baru
@wolf1728

Is it something like this for number 6.?

70+20=90... negative 1/2 (one half.)...102.606043...Cos (70)/1=300/x... cross ~ bowtie...300/.342=.342x/.342...x=877.19=880. ??

Answer 26

We know angle A is 70 degrees
The cosine of 70 degrees = adjacent / hypotenuse
the hypotenuse (or "x") = adjacent / cos (70)
hypotenuse = 300 / .34202
hypotenuse =877.142
It seems you were REALLY close with your answer of 877.19
The only difference was that I looked up a more accurate value of cosine of 70 degrees.
The fact is you got it right!!

Answer 27

i need some help