Hello there!
This is true
As we can see in this example: x + y = 10, we can solve for one of the variables (let's say here we're solving for x), by subtracting y from both sides, leaving
x = 10 - y
I hope I helped!
The diagram of the ladder leaning on a wall is shown below
We will use the trigonometry ratio for cosine to solve for 'x'
We choose the cosine ratio because we have the angle, 61° and the side adjacent to the angle
, rounded to 2 dp
Mmm... I think it is 5/8... I think.
You would need to cut it directly at the following red line