Question 1 :
D and E are the mid-points of the sides AB and AC respectively of $\triangle ABC$. DE is produced to F. To prove that CF is equal and parallel to DA, we need an additional information which is

Question 2 :
<img style='object-fit:contain' src='https://teachmint.storage.googleapis.com/question_assets/cbse_ncert/61b1d21df59b460d7261f543.PNG' /> In the above fig, ABCD is a quadrilateral in which P, Q, R and S are mid-points of the sides AB, BC, CD and DA. AC is a diagonal. Is PQ=SR ?

Question 3 :
Diagonals of a quadrilateral ABCD bisect each other. If $\angle A = 35^{\circ}$, determine $\angle B$.

Question 4 :
<img style='object-fit:contain' src='https://teachmint.storage.googleapis.com/question_assets/cbse_ncert/61b1d216f59b460d7261f539.PNG' /> In ∆ ABC and ∆ DEF in the above fig, AB = DE, AB || DE, BC = EF and BC || EF. Vertices A, B and C are joined to vertices D, E and F respectively. Which of the following statement(s) is(are) true?

Question 5 :
<img style='object-fit:contain' src='https://teachmint.storage.googleapis.com/question_assets/cbse_ncert/61b1d213f59b460d7261f535.PNG' /> In parallelogram ABCD shown in the fig above, two points P and Q are taken on diagonal BD such that DP = BQ. Is AQ = CP ?

Question 6 :
State true or false : Diagonals of a square bisect each other at right angles and are equal and vice-versa.

Question 7 :
The figure obtained by joining the mid-points of the sides of a rhombus, taken in order, is

Question 8 :
What is the sum of all the angles of a quadrilateral?

Question 10 :
State true or false: If all the points are collinear (in the same line), we obtain a line segment.

Question 11 :
State true or false : A quadrilateral is a parallelogram, if its diagonals bisect each other.

Question 12 :
<img style='object-fit:contain' src='https://teachmint.storage.googleapis.com/question_assets/cbse_ncert/61b1d20bf59b460d7261f529.PNG' /> In the above fig, ABCD is a parallelogram in which P and Q are mid-points of opposite sides AB and CD. If AQ intersects DP at S and BQ intersects CP at R, then PSQR is a _______________.

Question 13 :
Can the angles $110^{\circ}$, $80^{\circ}$, $70^{\circ}$ and $95^{\circ}$ be the angles of a quadrilateral?

Question 15 :
ABCD is a rhombus such that $\angle ACB = 40^{\circ}$. Then $\angle ADB$ is