ABC is an equilateral triangle and C is centre of the circle A and B lie on the circle what is the area of shaded region if the diameter of circle is 28cm
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if c is center and a & b lies on the circle
then ca & cb is radius
then ca=cb=14
due to triangle is equilateral then ab=14
then
area of circle is =(22/7)*14*14
=44*14=196
and area of triangle is =√3a²/4
=(√3*14*14)/4
=√3*7*7=70.56
then unshaded
area=196-70.56=125.44...............(ans)
then ca & cb is radius
then ca=cb=14
due to triangle is equilateral then ab=14
then
area of circle is =(22/7)*14*14
=44*14=196
and area of triangle is =√3a²/4
=(√3*14*14)/4
=√3*7*7=70.56
then unshaded
area=196-70.56=125.44...............(ans)
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