Q. 27 D4.2( 5 Votes )

# Let us calculate the area of a circular region circumscribe a triangle of which sides are 3 cm, 4 cm and 5 cm.

By the pythagoras theorem,

32 + 42 = 9+16 = 25

And 52 = 25

The given triangle forms a right angled triangle

BC will act as the diameter of the circumcircle centered at O.

Diameter = 5 cm

Area of a circle = πr2

Area of the circumcircle

Area of circumcircle = 19.64 cm2

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