25 degrees is the answer. CBE is supplementary to ABC. That means those two angles add up to 180 degrees.
(350x2=700) + (125x2=250) 700+250=950 so the perimeter is 950 meters long I hope this helps!
The gradient of the perpendicular line would be the negative reciprocal of the original line. Therefore the gradient of the perpendicular line would be -2/5x.
Since we know y=mx+c, ∴y=-2/5x+c. Sub in the x and y values of the given point and we get that c=26/5.
The perpendicular equation would be y=-2/5x+26/5.
I hope I got this right.
The correct answer is a function
