The length of 2 scales are p, q units then find the total length.
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The length of line PQ is 10 units and the coordinates of P are (2,−3); calculate the coordinates of point Q, if its abscissa is 10.
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The length of line pl is 10 units
and the coordinate, p are (2,-3)
;calculate the coordinate of point
l, if abscissa is 10.
⇒ pl = 10 units
10=
(y−y
1
)
2
+(x
2
−x
1
)
2
10=
(−3−y
1
)
2
+(2−10)
2
10
2
=(3+y
1
)
2
+64
(3+y
1
)
2
=100−64=36
3+y=6
y=63=3
y = 3
D =( 2,-3) & l = (10,3)
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