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(a) In the figure (i) given below, AC and BD are two perpendicular diameters of a circle ABCD. Given

that the area of the shaded portion is 308 \mathrm{cm}^{2}

calculate

(i) the length of AC and

(ii) the circumference of the circle

(b) In the figure (ii) given below, AC and BD are two perpendicular diameters of a circle with center O. If

AC = 16 cm, calculate the area and perimeter of the shaded part. (Take π = 3.14)

Answer:

The route or boundary that surrounds any shape is defined by its circumference. In other terms, the circumference is also known as the perimeter, and it aids in determining the length of any shape's contour.

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