ICSE-VIII-Mathematics

20: Area of Trapezium and a Polygon Class 8 Maths

with Solutions - page 3
Qstn# B-15 Prvs-QstnNext-Qstn
  • #15
    A path of uniform width, 2.5 m, runs around the inside of a rectangular field 30 m by 27 m. Find the area of the path.
    Ans : According to the given statement the figure will be as shown alongside.
    Clearly, the length of the rectangular field including the path = 30 m.
    Breadth = 27 m.
    Its Area = 30× 27 = 810 m2
    Width of the path = 2.5 m
    Length of the rectangular field including the path = 30 - 2.5 - 2.5 = 25 m.
    Breadth = 27 - 2.5 - 2.5 = 22m
    Area of the rectangular field including the path = 25× 22 = 550 m2
    Hence, area of the path = 810 - 550 = 260 m2