Question

In the figure, AB and CD are two diameters of a circle (with centre O) perpendicular to each other and OD is the diameter of the smaller circle. If OA = 7 cm, find the area of the shaded region.

Q.8: Area of the largest triangle that can be inscribed in a semi-circle of radius r units is

(A) r² sq. units (B) ½ r² sq. units

(C) 2 r² sq. units (D) √2 r² sq. units
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Answer 1

Answer:

In the figure, AB and CD are two diameters of a circle (with centre O) perpendicular to each other and OD is the diameter of the smaller circle. If OA = 7 cm, find the area of the shaded region.

Q.8: Area of the largest triangle that can be inscribed in a semi-circle of radius r units is

(A) r² sq. units (B) ½ r² sq. units

(C) 2 r² sq. units (D) √2 r² sq. units

Answer 2

The correct answer will be 66.5cm

Refer to the attachment for the details

Option B) is correct!!

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