00:01
And this problem, they give us a right triangle that has an angle of 55, so we can put this angle right here.
00:09
And they tell us that the adjacent leg to this side is 43 centimeters.
00:16
And they want to find the length of the other side.
00:20
So here we have the opposite side and the adjacent side.
00:26
So the proper trigonometric function to use is tangent.
00:30
So tangent of 55 degrees.
00:34
Is equal to the opposite x over the adjacent 43.
00:39
So x is going to be equal to 43 times tangent of 55 degrees.
00:47
And we get a value of x of 61 .41.
00:55
For the other triangle, they tell us that the hypotenuse, which is the longer side, the one opposite, the right angle, is 9 inches.
01:07
Ah, by the way, in the previous problem, the units are centimeters...