# (i)    Divide the following polygons (Fig 11.17) into parts (triangles and trapezium) to find out its area.FI is a diagonal of polygon EFGHI         NQ is a diagonal of polygon MNOPQR

Answers (1)

(i)

Area of  polygon EFGHI = area of EFI + area of quadrilateral FGHI

Draw a diagonal FH

Area of  polygon EFGHI = area of EFI + area of  FGH + area of FHI

Area of polygon MNOPQR = area of quadrilateral NMRQ+area of quadrilateral NOPQ

Draw diagonal NP and NR .

Area of polygon MNOPQR = area of NOP+area  of NPQ +area of NMR +area of  NRQ

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