Alex is making an isosceles triangle shaped pennat to support her schools athletic team in sport day, as shown below . side ac is the same length as ab . alex rotates the pennat 90 degrees clockwise to stick it to the wooden pole . what would be the measure of angle a after alex rotates the pennant ?

d

because parallelagram have all 4 angels the same size dependeing and a rectangle and square are oth parallelogram

step-by-step explanation:

for exempl this   system of equations   y = x - 3

                                                                y = 2x - 5

look   the line : y = x -3     ( red)

                            the line : y = 2x -5 ( bleus)