Question

need help finding radians...

Answer 1

this not is a right triangle ,yes ?

Answer 2

yes

Answer 3

so than how you will make calcules ?

Answer 4

no idea, thats why I'm asking.

Answer 5

you need a formula for the area of a triangle that uses the angle

Answer 6

i was given 1/2absin theta

Answer 7

if your given it, then id suggest you use it :)

Answer 8

i did, but my answer didn't work out...

Answer 9

11*4/2 = 22

22sin(t) = 5

sin(t) = 5/22

t = arcsin(5/22) will give you radians

Answer 10

area =5=4*h/2 =2h
5=2h --- h=5/2 =2,5
sin(teta)=h/a
sin(teta)=2,5/4
sin(teta)=25/40
sin(teta)=5/8 =0,625
- so you need cheking sinus of what angle have this value ?

for example sin(30) =1/2 or sin(45)=(sqrt2)/2

Answer 11

still puzzled as to what the answer is though.

Answer 12

the answer is: arcsin(5/22)

i would assume

Answer 13

@gd0x --> did you get down to the step sine (theta) = 5/22?

Before that, a person needs to know that the area of any triangle is equal to 1/2 the product of any two sides and the sine of the included angle.

If so, from there,

In degrees, I got 13.13 degrees.
In radians, I got .2292 radians.
Both came from sin (theta) = .2272 from (5/22)
My calculator is in degrees by default.
I changed the setting to radians and got the .2292 radians.
(For small values of sine, the sine of the angle and the angle in radians are close in value.)