circumference is 2蟺 r = 2蟺 inches
Height is 10 inches
So surface area is 20蟺 sq inches
If you mean that the roller does 3 rotations to cover the wall, then the wall is 60蟺 = 188.5 sq ins
Sunday, February 21, 2010
A cylindrical paint roller has a radius of 1 inch and height of 10 inches.how many square inch.of wall becover?
hint:the roller makes 3 compltete rotations and 1 rotation is a lateral surface areaA cylindrical paint roller has a radius of 1 inch and height of 10 inches.how many square inch.of wall becover?
circumference is 2蟺 r = 2蟺 inches
Height is 10 inches
So surface area is 20蟺 sq inches
If you mean that the roller does 3 rotations to cover the wall, then the wall is 60蟺 = 188.5 sq inshuman hair
circumference is 2蟺 r = 2蟺 inches
Height is 10 inches
So surface area is 20蟺 sq inches
If you mean that the roller does 3 rotations to cover the wall, then the wall is 60蟺 = 188.5 sq ins
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