Question

in the figure is equal to 4 cm area of triangle element is 40 squares in the area of triangletrianglein the figure is equal to 4 cm area of triangle element is 40 squares in the area of trianglein the figure is equal to 4 cm area of triangle element is 40 squares in the area of triangle yellow m16 cm2.

a) compute the area of triangle LON
b)The ratio of the area of triangles LOM and LON =
c)OM:ON=​

Answer 1

Answer:

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Answer 2

Given AB=BC=AC

Area of Equilateral △ ABC = 17320.5cm  

2

 

                 ∴  

4

3

​

 

​

×AB  

2

 =17320.5

                    ∴ AB =200cm

Also, AB=2AD

∴     AD=100 cm =radius

Area of sector DAE + Area of sector DBF + Area of sector FCE

We know that area of sector =  

360

θ

​

×π×r  

2

 

=3×  

360

60

​

×3.14×100×100

=15700cm  

2

 

∴   Area of the shaded region = Area of equilateral triangle − Area of all sectors

                                         =17320.5−15700

                                         =1620.5cm  

2