Answer:
a = -2, b = 3
Parameter = 24 units
Step-by-step explanation:
According to information provided in question, opposite side is reflection of point C and D. So the distance of C to the y-axis is equal to distance of (a-2,b+1) to y-axis.
Now C = (4,4)
at C, value of x co-ordinate is 4.
So in opposite direction value of x co-ordinate is -4
Here we can equate,
a-2 = -4
a = -4+2
a = -2
But remember, there is no distance covered on y-axis through C to opposite side of y-axis,
So,
b+1 = 4
b = 4-1
b = 3
Now for parameter,
since, b+1 =4,
Notice that on lower point of (a-2,0)
y co-ordinate or ordinate is 0.
So the distance covered along y-axis is 4.
Now from point C to point (a-2,b+1), distance is covered along x-axis,
value of x co-ordinate on C is 4 and at point (a-2,b+1) value of x co-ordinate is -4 because
a-2 -4,
So total distance from point C to point (a-2,b+1) is 8 (4 to right side of y coordinate and 4 to left side of coordinate)
Now understand that two sides have length of 8 units and two sides have length of 4 units.
Parameter = sum of lengths of all sides
Parameter = 8+8+4+4
Parameter = 24 units
