Three circles of radius 3.5cm are placed in such a way that each circle touches the other two. The area of the portion enclosed by the circles is
required area = (area of an equilateral triangle of side 7 cm)- (3 * area of sector with à = 60 degrees and r = 3.5cm)34*7*7-3*227*3.5*3.5*60360 sq cm
=34*49-11*0.5*3.5 sq cm
= 1.967 sq cm
The lengths of the diagonals of a rhombus are 16 cm and 12 cm. Its area is:
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