3. Coordinate Geometry
medium

एक आयत के तीन शीर्ष $(3,2),(-4,2)$ और $(-4,5)$ हैं। इन बिंदुओं को आलेखित कीजिए और फिर आयत के चौथे बिंदु के निर्देशांक ज्ञात कीजिए।

Option A
Option B
Option C
Option D

Solution

Plot the three vertices of the rectangle as $A (3,2), B (-4,2), C (-4,5)$ (see $Fig.$).

We have to find the coordinates of the fourth vertex $D$ so that $A B C D$ is a rectangle.

Since the opposite sides of a rectangle are equal, so the abscissa of $D$ should be equal to abscissa of $A ,$ i.e., $3$ and the ordinate of $D$ should be equal to the ordinate of $C , i . e ., 5$

So, the coordinates of $D$ are $(3,5).$

Standard 9
Mathematics

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