Tag: maths

Questions Related to maths

Given that a right angled trapezium has an inscribed circle. then " the length of the right angled leg is the Harmonic mean of the lengths of bases. "that  statement is __

  1. True

  2. False


Correct Option: A

$ABCD$ is a trapezium with side $BC$  parallel to $AD$ . If E is midpoint of $AB$ and the line through E parallel to $DC$ meets $AD$ and $BC$ at $X$ and $Y$ respectively . these this relation is  $\left[ {ABCD} \right] = \left[ {XYCD} \right]$ . is ?

  1. True

  2. False


Correct Option: A

If $ABCD$ is a trapezium such that $AB\parallel CD$. Also $CD\bot BC$. If $\angle ADB=\theta, BC=p, CD=q$ then $AB$=?

  1. $(p^{2}+q^{2})\cos\theta/p\cos\theta+q\sin\theta$

  2. $(p^{2}+q^{2})\cos\theta/p\sin\theta+q\cos\theta$

  3. $(p^{2}+q^{2})\sin\theta/p\cos\theta+q\sin\theta$

  4. $(p^{2}+q^{2})\sin\theta/p\sin\theta+q\cos\theta$


Correct Option: A

In the case of trapezium, the ratio of its angles taken in order cannot be 

  1. 1:2:3:4

  2. 7:13::2:8

  3. 6:3:4:2

  4. 4:5:2:3


Correct Option: A

$ABCD$ is a trapezium in which $AB\parallel CD$. Which of the following is equal to $AC^{2}+BD{2}$?

  1. $AD^{2}+BC^{2}-2AB.CD$

  2. $AD^{2}+BC^{2}+2AB.CD$

  3. $AD^{2}-BC^{2}+2AB.CD$

  4. $AD^{2}-BC^{2}-2AB.CD$


Correct Option: A

In trapezium PQRS, PQ($23$cm) and RS($13$ cm) are the bases. Find the area of the trapezium if the diagonals bisect angles SPQ and PQR.

  1. $350$ $cm^2$

  2. $276$ $cm^2$

  3. $216$ $cm^2$

  4. $410$ $cm^2$


Correct Option: B

$ABCD$ is a trapezium in which $BC \parallel AD, BC=20\ cm$ and $AD=45\ cm$. If $P$ and $Q$ are the midpoints of $AB$ and $CD$ respectively, then the ratio of $ar(\Box PBCQ)$ to $ar(\triangle PQD)$ is

  1. $\dfrac{42}{13}$

  2. $\dfrac{13}{6}$

  3. $\dfrac{21}{13}$

  4. $\dfrac{13}{7}$


Correct Option: A

In trapezium $PQRS$, side $PQ\parallel SR$. Diagonals $PR$ and $QS$ intersect each other at point $M$.  $PM=3RM$ 

  1. True

  2. False


Correct Option: B

The area of a trapezium is  $385 { cm } ^ { 2 } .$  Its parallel sides are in the ratio  $3 : 4$  and the perpendicular distance between them is  $11 { cm } .$  Its longer side is

  1. $35 cm$

  2. $30 cm$

  3. $40 cm$

  4. $60 cm$


Correct Option: A

In a trapezium, the lengths of its parallel sides are $a$ and $b$. The length of the line joining the midpoints of its non-parallel sides is :

  1. $\dfrac{a-b}{2}$

  2. $\dfrac{a+b}{2}$

  3. $\dfrac{ab}{2}$

  4. $\dfrac{ab}{a+b}$


Correct Option: A