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Answer:
72cm²
Step-by-step explanation:
it is a parallelogram as the opposite sides are equal
Diagonal of a parallelogram divides it into equal triangles
So here, triangle PSR = triangle PQR
Area of triangle PSR
= 1/2 × bh
= 1/2 ×18×4
=36cm² = area of triangle PQR
Area of llgm PQRS
Area of triangle PSR & PQR = 36 + 36
= 72 cm²
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