find the area of shaded parts
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Answer:
72 cm ^2
Step-by-step explanation:
area of triangle
= 1/2 * b* h
1/2 * 5 * 5
= 25/2cm ^2
area of triangle 2
1/2 * 5*7
=35/2 cm ^2
area of triangle 3
1/2 * 7*12
= 42cm ^2
area of shaded region = area of square - area of triangles
= 12*12 - ( 25/2 + 35/2 + 42)
=144- ( 72)
= 72 cm^2
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