D and E are the mid-points of the sides AB and AC respectively of ∆ABC. DE is
produced to F. To prove that CF is equal and parallel to DA, we need an additional
information which is
(A) ∠DAE = ∠EFC
(B) AE = EF
(C) DE = EF
(D) ∠ADE = ∠ECF.
Would you agree with the statement that economic marginalisation and social marginalisation are
interlinked? Why?
. Which of the following is not true for a parallelogram?
(A) opposite sides are equal
(B) opposite angles are equal
(C) opposite angles are bisected by the diagonals
(D) diagonals bisect each other.
The diagonals AC and BD of a parallelogram ABCD intersect each other at the
point O. If ∠DAC = 32º and ∠AOB = 70º, then ∠DBC is equal to
(A) 24º (B) 86º (C) 38º (D) 32º
The figure formed by joining the mid-points of the sides of a quadrilateral ABCD,
taken in order, is a square only if,
(A) ABCD is a rhombus
(B) diagonals of ABCD are equal
(C) diagonals of ABCD are equal and perpendicular
(D) diagonals of ABCD are perpendicular.
In the storyboard you read about how Helen hopes to make a movie on the Adivasi story. Can
you help her by developing a short story on Adivasis?
D and E are the mid-points of the sides AB and AC of ∆ABC and O is any point on
side BC. O is joined to A. If P and Q are the mid-points of OB and OC respectively,
then DEQP is
(A) a square (B) a rectangle
(C) a rhombus (D) a parallelogram
Imagine that you are watching the Republic Day parade on TV with a friend and she remarks,
“Look at these tribals. They look so exotic. And they seem to be dancing all the time”. List three
things that you would tell her about the lives of Adivasis in India.
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