Totution ul the cow.Take t 3.14et of diameter 2.8 m is spoted in the c

1.	Totution ul the cow.Take t 3.14et of diameter 2.8 m is spoted in the centre with a 20 em striped bordert Find the area of tstriped portion of the carpet to the nearest cm2
Answer» Area of stripped portion = ( Area of carpet - Area of inner portion) Diameter of carpet = 2.8m = 280cm So radius of carpet= 140cm Area of carpet= 22/7(140140) = 61600 cm sq Radius of inner portion = 140-20=120cm Area of inner portion= 22/7 (120120) = 45216 cm sq. Area of stripped portion = 61600-45216= 16384 cm sq.

Totution ul the cow.Take t 3.14et of diameter 2.8 m is spoted in the centre with a 20 em striped bordert Find the area of tstriped portion of the carpet to the nearest cm2

Answer»

Area of stripped portion = ( Area of carpet - Area of inner portion)

Diameter of carpet = 2.8m = 280cm

So radius of carpet= 140cm

Area of carpet= 22/7(140*140) = 61600 cm sq

Radius of inner portion = 140-20=120cm

Area of inner portion= 22/7 (120*120)

= 45216 cm sq.

Area of stripped portion = 61600-45216= 16384 cm sq.