In the figure given below, ABCD is a square of side 14cm with E, F, G, H as the midpoints of sides AB, BC, CD, and DA respectively. The area of the shaded region is:

ABCD is a quadrilateral in which AD = BC. E, F, G and H are the mid-points of AB, BD, CD and AC respectively. Prove that EFGH is a rhombus.

in the adjoining figure ABCD is a square of side 14 cm. Find the radius of the circle

ABCD is a rhombus and P, Q, R and S are wthe mid-points of the sides AB, BC, CD and DA respectively. Show that the quadrilateral PQRS is a rectangle.

ABCD is a rectangle and P, Q, R and S are mid-points of the sides AB, BC, CD and DA respectively. Show that the quadrilateral PQRS is a rhombus.

In the given figure, ABCD is a square of side 7 cm. DPBA and DQBC are quardrants of circles each of the radius 7 cm. Find the area of the shaded region.

In Figure, P Q R S is a square of side 4 cm. Find the area of the shaded region.

Four charges +q, +q, -q, and -q are placed, respectively, at the corners A,B,C, and D of a square of side a , arranged in the given order. E and F are the midpoints of sides BC and CD , respectively, O is the center of square. The work done in carrying a charge e from O to F is.

Four charges +q, +q, -q, and -q are placed, respectively, at the corners A,B,C, and D of a square of side a , arranged in the given order. E and F are the midpoints of sides BC and CD , respectively, O is the center of square. The work done in carrying a charge e from O to E is.

Four charges +q, +q, -q, and -q are placed, respectively, at the corners A,B,C, and D of a square of side a , arranged in the given order. E and F are the midpoints of sides BC and CD , respectively, O is the center of square. The electric field at O is.