1.

In the adjoining figure, the radius is 3.5 em. Find the perimeter of the quarter ofthe cirele,correct to one decimal place.&.3.5 cm

Answer»

Perimeter of quadrant = length of arc + 2* Radius

= pi r/ 2 + 2r

= 22*3.5/7*2 + 2*3.5

= 11/2 + 7

= 5.5 + 7

= 12.5 cm



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