Given triangle DOG, where angle D=64 degrees, angle O= 38 degrees, length of DO = 8 inches. I need to solve the problem completely and find the area of triangle DOG. Any help ?

Question

anonymous · Answer

Sorryi was terrbile in geometry.

anonymous · Answer

|dw:1315524789596:dw|

anonymous · Answer

G you find first because angles have to add up to 180

anonymous · Answer

So G would be 78?

anonymous · Answer

D=64
O=38
G= 78

anonymous · Answer

Then I have to use sine right ?

anonymous · Answer

you find the other sides via law of sines

anonymous · Answer

right

anonymous · Answer

but to find the other sides, would that be one expression or two? Can I find each side separately versus finding them at the same time?

anonymous · Answer

so for example 
$$\frac{8}{\sin(78)}=\frac{d}{\sin(64)}$$ and threfore 
$$d=\frac{8\sin(64)}{\sin(78)}$$

anonymous · Answer

where d is side opposite D
you find them one at a time

anonymous · Answer

now a calculator

anonymous · Answer

i get 7.35

anonymous · Answer

now you find o same method.

anonymous · Answer

okay i got that. what about the other side?

anonymous · Answer

i think i know what you mean....let me try it.

anonymous · Answer

same method. what i would call o and you could call DG use law of sines again. gotta run but i bet you can get it. same as before

anonymous · Answer

thanks !