An 18” diagonal computer monitor is to be created that will have a height to width ratio of .75. what will its dimensions be?

Question

bibby · Answer

I think this is what it looks like. you could use the Pythagorean theorem here

anonymous · Answer

is it tan^-1 (.75/18)=0.04 and tan^-1(.75/18)=1.53 as the final answer

bibby · Answer

this might be wrong.

anonymous · Answer

oh yeah i'm sorry you did say use the pyth. theroem

bibby · Answer

I did. we don't have actual values for the sides (hence the x)
So we cant use tan etc.

anonymous · Answer

oh yeah that makes sense

anonymous · Answer

so i did mine like this...

bibby · Answer

it looks like it adds up to the diagonal. I think it's right

anonymous · Answer

attachment

anonymous · Answer

but i'm not sure if i did mine correctly

bibby · Answer

remember that the sides are in a ratio.

a:b is 0.75. They're both unknown so they're both x.

a is 0.75x
b is 1x

anonymous · Answer

yes

bibby · Answer

rofl I forgot to square 18.
yeah you're right, sorry.

anonymous · Answer

haha that's okay at least you went back to check it. thanks for the help.