find the distance of a point P(x,y) from the origin.
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Let O and P denote the points
( 0,0 ) and P( x,y ) and ' O ' be the
Origin .
The ∆OAP is a right angle
triangle .
From the figure ,
OA = x units
AP = y units
Hence , by using Pythagorean
Theorem ,
OP² = OA² + AP²
= x² + y²
OP = √x² + y²
Therefore ,
Distance of the point P(x,y)
From the origin = OP
= √x² + y²
••••
( 0,0 ) and P( x,y ) and ' O ' be the
Origin .
The ∆OAP is a right angle
triangle .
From the figure ,
OA = x units
AP = y units
Hence , by using Pythagorean
Theorem ,
OP² = OA² + AP²
= x² + y²
OP = √x² + y²
Therefore ,
Distance of the point P(x,y)
From the origin = OP
= √x² + y²
••••
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Given:
Point ( x, y )
Origin ( 0, 0 )
To find:
The distance.
Solution:
By formula
Distance between two points = √(( y2 - y1 )^2 + ( x2 - x1 )^2)
Origin ( 0, 0 ) ( x1, y1 )
Point ( x, y ) ( x2, y2 )
Distance = √(( y - 0 )^2 + ( x - 0 )^2
√(x)^2 + (y)^2
Hence, the distance of a point P(x,y) from the origin is √(x)^2 + (y)^2.
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