Question

the sides of a triangular park are 8m , 10m and 6m , respectively. A small circular area of diameter 2m is to be left out and the remaining area used for growing roses. How much area is used for growing roses?{Take π=3.14}​

Answer 1

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↝20.86 sq. m

$\bold{\huge{\fcolorbox{red}{pink}{☞solution:}}}$

☞ Given :

• Sides of triangle: 8m,10m,6m
• diameter: 2m ⟺ radius = 2/2 = 1m

⟹ Semiperimeter of triangular park

• = (8+10+6)/2 = 12m.

⟹ Area of triangle using heron's formula

• = Root {12(12-8)(12-10)(12-6)} = 24 sq. m or 24m^2

⟹ Area of circle to be left out

• = Pie * (2/2)^2 = 3.14 m^2

∴ Area used for growing Roses

• = Total area - area to be left out
• = 24 m^2 - 3.14 m^2
• = 20.86 m^2

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