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ICSE-VIII-Mathematics

20: Area of Trapezium and a Polygon Class 8 Maths

with Solutions - page 3
Qstn# B-11 Prvs-QstnNext-Qstn
  • #11
    The perimeter of a square is numerically equal to its area. Find its area.
    Ans : Let each side of the square be x cm.
    Its perimeter = 4x,
    Area = x2
    By the given condition,4x = x2
    ⇒ x2 - 4x = 0
    ⇒ x (x - 4) = 0
    ⇒ x = 4 [x ≠ 0]
    Area = x2 = (4)2 = 4 x 4 = 16 sq.units.