46. If the length and area of a rectangle are 1.68 cm and 3.4944 cm² respectively, find the area of the circle whose radius is equal to the breadth of the above mentioned rectangle. (Take = 3.14) (1) 10.786 cm? (2) 15.065 cm? (3) 13.585 cm? (4) 11.785 cm

Answers 1

Answer:

A=13.5848cm^2

Step-by-step explanation:

given: length=1.68cm,area=3.4944cm^2

relation:  radius is equal to the breadth

so we have to find breadth.

area of rectangle =length * breadth

3.4944=1.68cm* breadth

breadth =3.4944/1.68=2.08cm

so radius =2.08cm

area of circle=pis *r^2

A= 3.14*(2.08)^2

A=13.5848cm^2

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