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Numerical Ability
Geometry
To create a logo, an artist first draws a circle inside a square. Diameter of a circle is equal
to the side of the square. The artist wants to create a logo where the portion outside the
circle but inside the square is shaded, and sector with arc length 5.5 cm is shaded. If the area of the square is 196 cm2, the area of the shaded portion is what fraction of the total area of the logo?
Read Solution (Total 5)
-
- Total area of logo = area of sq.
= 196 = 14²
so, side of sq. is 14 cm, therefore radius of circle = 14/2
= 7cm
area of circle = 22/7 * 7²
=154 cm²
area of shaded region = area of aq. - area of circle
= 196 - 154
= 42 cm²
ratio :
area of shaded region/area of logo (area of sq.)
=42/196
=3/14 - 3 years agoHelpfull: Yes(4) No(2)
- Area of shaded area=(area of square-area of circle)+area of sector
=(196-22/7*7*7)+LR/2
=42+19.25
=61.25 - 3 years agoHelpfull: Yes(3) No(1)
- area of the shaded portion = Area of square -Area of Circle
therefore
area of Circle = π r²
here radius=7
22/7*(49)=154
196-154=42
42 is the answer - 3 years agoHelpfull: Yes(2) No(10)
- Area of the square =196
Area of the circle =154
Area of the sector=19.25
shaded areas=area outside the circle+area of the sector
so,(196-154)+19.24 =61.25
fraction of shaded region to the area of logo ie,196 = 61.25/196
my answer is 0.3125 - 2 years agoHelpfull: Yes(1) No(0)
- area of the shaded portion = Area of square -Area of Circle
therefore
area of Circle = π r²
here radius=7
22/7*(49)=154
196-154=42
42 is the answer - 5 Months agoHelpfull: Yes(0) No(0)
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