The area of a circle whose area and circumference are numerically equal, is (a) `2pi` sq. units (b) `4pi` sq. units (c) `6pi` sq. units (d) `8pi` sq. units

The area of a circle whose radius is the diagonal of a square whose area is 4 sq. units is 16pi s qdotu n i t s (b) 4pi s qdotu n i t s (c) 6pi s qdotu n i t s (d) 8pi s qdotu n i t s

The area enclosed by 2|x|+3|y|<=6 is (a) 3 sq.units (b) 4 sq.units (c)12 sq.units (d) 24 sq.units

The area of a sector whose perimeter is four times its radius r units, is (a) (r^2)/4 sq. units (b) 2r^2 sq. units (c) r^2 sq. units (d) (r^2)/2 sq. units

If a tangent having a slope of -4/3 to the ellipse x^2/18 + y^2/32 = 1 intersects the major and minor axes in points A and B respectively, then the area of DeltaOAB is equal to (A) 12 sq. untis (B) 24 sq. units (C) 48 sq. units (D) 64 sq. units

The area of a circle whose radius is the diagonal of a square whose area is 4 sq. units is :

Tick the correct answer in the following and justify your choice: If the perimeter and the area of a circle are numerically equal,then the radius of the circle is (A) 2units (B) pi units (C) 4 units (D) 7 units

Thangents are drawn from (-1, 0) to y^2 = 4x . Then the area of the triangle fromed by the tangents and the chord of the contact is : (A) 8 sq. units (B) 2 sq. units (C) 4 sq. units (D) 1 sq.units

In the given figure, A B C D is a rectangle with A D=4 units and A E=E BdotE F is perpendicular to D B and is half of D F . If the area of the triangle D E F is 5 sq. units, then what is the area of A B C D ? 18sqrt(3) sq. units (b) 20 sq. units (c) 24 sq. units (d) 28 sq. units

The area of the triangle formed by the points P(0,1), Q(0,5) and R(3,4) is (a) 16 sq. units (b) 8 sq. units (c) 4 sq. units (d) 6 sq. units

8 TePR2 p? 4x- 2) 11 = 0 be a circle. A pall or tangents from the point (4, 5) with a pair of radii form a quadrilateral of area (a) 8 sq. units (b) 10 sq. units (d) 16 sq. units (c) 12 sq. units