It's true u use substitutution
Answer: its e
Step-by-step explanation:
Answer:
Step-by-step explanation:
Shape Formula Sum Interior Angles
3 sided polygon (triangle) (3−2)⋅180 180∘
4 sided polygon (quadrilateral) (4−2)⋅180 360∘
6 sided polygon (hexagon) (6−2)⋅180 720∘
The cool thing with angles, is that the angle corresponds to the length of the side it's facing. With this, we know that angle B causes a side length of 9; just as well, it is 45 degrees. It also just so happens that angle A is 45 degrees as well. This means that side Y is 9 units long as well.
Now for side X!
We can use the Pythagorean Theorem for this:
X^2=9^2*9^2
X^2=81+81
X^2=162
Now we square root to find:
X=12.73
I hope this Helps!
Your answer is going to be 5 because the sq root of 24 is 4.89 so you round up to 5