Question

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 ?

Answer 1

Sorryi was terrbile in geometry.

Answer 2

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

Answer 3

So G would be 78?

Answer 4

D=64
O=38
G= 78

Answer 5

Then I have to use sine right ?

Answer 6

you find the other sides via law of sines

Answer 7

right

Answer 8

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?

Answer 9

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

Answer 10

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

Answer 11

now a calculator

Answer 12

i get 7.35

Answer 13

now you find o same method.

Answer 14

okay i got that. what about the other side?

Answer 15

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

Answer 16

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

Answer 17

thanks !