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The area of the triangle formed by theor...

The area of the triangle formed by theorigin, the point `P(x,y)` and its reflection in X-axis is

A

xy

B

`2|xy|`

C

`(1)/(2)|xy|`

D

`|xy|`

Text Solution

Verified by Experts

The correct Answer is:
D
The reflection of point P(x,y)n in X-axis the point Q(x,y). Let A be the required area, Then,
`A"Area of" DeltaPOQ=(1)/(2)(PQxxOM)`
`rArr A=(1)/(2)(2|y|xx|x |)=|xy|`
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OBJECTIVE RD SHARMA ENGLISH-CARTESIAN CO-ORDINATE SYSTEM -Section I - Solved Mcqs
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