the perimeter of an equilateral triangle is 126 cm find the area of the incircle of the triangle
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Answer:
perimeter: 126 ,Side:=42
Radius of incircle:
angles of Rt. triangle
30:60: 90
side against 30° = 42/2=21
Radius of the circle is side against
30.=7 v3
Area of incircle
πr^2 = 3.14x(7V3)^2 = 3.14x49x3
=46l. 58cm2
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