how do I solve this
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Answer:
area of square is = side
= 9×9
=81 sq.cm.
area of triangle = 1/2× base×height
=1/2 ×2.5 ×3
=1.5 ×2.5
= 3.75 square centimeters
total =area of square -area of triangle
=81-3.75
=77.25
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