Question

Help Please

Could I find the two missing side lengths of a right triangle if I only know one side length and one angle measure (other than the 90 degree angle)?

Answer 1

yes you can

Answer 2

how can you explain to me please

Answer 3

well imagine any triangle with angle theta and an unknown side this side can be x,y, or r

Answer 4

trigonometric rules say
\[\sin \theta=\frac{ y }{ r }\]
\[\cos \theta=\frac{ x }{ r }\]
\[\tan \theta=\frac{ y }{ x }\]
note that all equations have one angle two sides given and remember yu know already one side , so you will choose an equation that is mst appropriate

Answer 5

ok so how do i know which one is the right one

Answer 6

1)find r
2)find x
to answer this you have to know
which equation has r and the given side (y=10)
2)to find x you need the equation with x and (y=10)
wich ratio's are these

Answer 7

it depends on the sides you need to find out and also on the angle you already have from the text of the question

Answer 8

SohCahToa is an acronym used for these to remember

Answer 9

ok