Folded square

ABCD is a square. The square is folded on the midpoint of AB, and A is folded onto the fold, creating a shaded region. The perimeter of the shaded figure is 75. Find the area of square ABCD

Correct answer:

S =  900

Step-by-step explanation:

p1=75 p1=2a+2 a/4 p1=2.5 a a=p1/2.5=75/2.5=30 S=a2=302=900



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