angle 5 and angle 4 are exterior angles
It would be A=18 because of the equation a^2+b^2=c^2.
The slope of the line is 1.
The slope of the line is 1 because the line moves ror goes up from left to right, making it a positive. The line also moves one block over and one block up.
The percentage would be 73% but idk the rest
