If the area of a circle of radius 7 cm is 154 sq.cm, what is the area of the shaded portion of the figure shown below?
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Answer:
b) 10.5 CM. square
Step-by-step explanation:
Area of a circle =πr^2=154 sq cm (given)
r^2=154/π=154×7/22=7×7 sq cm
=> r= 7 cm
d=2r=14 cm
So, Side of suare circumscribing the circle=14 cm
Area of square=(14 cm)^2=196 sq cm.
Area of the portion of square out side the circle=(196–154) sq cm=42 sq cm
Area of the shaded portion of the figure=1/4 of 42 sq cm =10.5 sq cm.Ans
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0
Answer:
b
Step-by-step explanation:
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