From the circular card sheet of radius 28 cm two circles of radius 3.5cm

And a triangle with base 3cm and height 2cm i

1 thought on “From the circular card sheet of radius 28 cm two circles of radius 3.5cm<br /><br /> And a triangle with base 3cm and height 2cm i”

1. Step-by-step explanation:

   area of circular card sheet

   = πr² = 3.142×28²= 2463.328 cm²

   small circle radius = 3.5cm

   area of this circle = πx 3.5²= 38.4895 cm²

   there are 2 circles of radius 3.5cm

   therefore total area = 38.4895×2 = 76.979cm²

   area of traingle =( basexheight )/2

   = (3×2) /2 = 3cm²

   therefore total area that is removed,

   2 circles + 1 traingle = 76.979+3 = 79.979cm²

   remaining area after removing these circles and traingle,

   2463.328- 79.979 = 2383.349cm²

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