Q. 334.4( 63 Votes )

Sides of a right

Answer :

64.75 m2



Given – sides of triangle : 24m, 25m, 7m , radii of three circles : 3.5 m


Answer –


We know that, area of triangle is



In above figure, base b = 7 and height h = 24


Therefore, area of ABC is



A = 84 m2 ………(1)


Now, sum of three angles of a triangle is 180.


If we join portions of three circles with radii 3.5 we get sector of angle 180⁰ that is semicircle.


Area of this semicircle of radius 3.5 m is




A’ = 19.25 m2


Therefore, area of field that cannot be grazed by animals


= area of triangular field – sum of areas of 3 sectors


= 84 – 19.25


= 64.75 m2


Therefore, area of field that cannot be grazed by animals is 64.75 m2.


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