Write True or False and justify your answer:
In the figure,$ABCD$ and $EFGD$ are two parallelograms and $G$ is the mid-point of $CD.$ Then $\operatorname{ar}(\triangle DPC) = \frac{1}{2} \operatorname{ar}(EFGD).$

Vedclass pdf generator app on play store
Vedclass iOS app on app store
(FALSE) The statement is False.
Justification:
Since $\triangle DPC$ and parallelogram $ABCD$ are on the same base $DC$ and between the same parallels $AB$ and $DC$,we have:
$\operatorname{ar}(\triangle DPC) = \frac{1}{2} \operatorname{ar}(ABCD)$.
Given that $G$ is the midpoint of $DC$,the base of parallelogram $EFGD$ is $DG = \frac{1}{2} DC$.
Since parallelogram $EFGD$ and parallelogram $ABCD$ are between the same parallels,their areas are proportional to their bases.
$\operatorname{ar}(EFGD) = \frac{DG}{DC} \times \operatorname{ar}(ABCD) = \frac{1}{2} \operatorname{ar}(ABCD)$.
Comparing the two results:
$\operatorname{ar}(\triangle DPC) = \frac{1}{2} \operatorname{ar}(ABCD)$ and $\operatorname{ar}(EFGD) = \frac{1}{2} \operatorname{ar}(ABCD)$.
Therefore,$\operatorname{ar}(\triangle DPC) = \operatorname{ar}(EFGD)$.

Explore More

Similar Questions

In $\triangle ABC$,$AD$ is a median. $E$ is the midpoint of $BD$ and $O$ is the midpoint of $AE$. Prove that $ar(AOB) = \frac{1}{8} ar(ABC)$.

In trapezium $ABCD$,$AB || CD$ and diagonals $AC$ and $BD$ intersect at point $O$. Prove that $ar(AOD) = ar(BOC)$.

In the given figure,$ABED$ is a parallelogram and $DE = EC$. Prove that $\operatorname{ar}(ABF) = \operatorname{ar}(BEC)$.

Two parallelograms are on equal bases and between the same parallels. The ratio of their areas is

$PQRS$ is a square. $T$ and $U$ are the mid-points of $PS$ and $QR$ respectively. Find the area of $\Delta OTS$,if $PQ = 8 \, cm$,where $O$ is the point of intersection of $TU$ and $QS$.

Vedclass Products

For Students

Vedclass Test Series

Mock tests in real JEE/NEET style with performance analysis. 5-day free trial.

Start Free Trial
For Teachers

Exam Paper Generator

Generate Set A/B/C/D exam papers from 7.5L+ questions in 2 minutes. 3 chapters free.

Try Free
For Institutes

Online Exam Module

Live online exams with unlimited students, 360° analytics & white-label branding.

See Demo