What is the height of P from AB in the figure above?
A. 20
B. 25
C. 30
D. 35
E. 50
The OA is E
Source: EMPOWERgmat
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What is the height of P from AB in the figure
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deloitte247
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The height is 50m, since all the lines are perpendicular
drawing a straight line PB from P perpendicular to AB will be 20+30=50
$$answer=option\ E$$
drawing a straight line PB from P perpendicular to AB will be 20+30=50
$$answer=option\ E$$
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fskilnik@GMATH
- GMAT Instructor
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\[? = {\text{dist}}\left( {P,\overleftrightarrow {AB}} \right)\]swerve wrote:
What is the height of P from AB in the figure above?
A. 20
B. 25
C. 30
D. 35
E. 50
Source: EMPOWERgmat
Important: the distance between a given straight line r and a given point P that does not belong to r is
equal to the length of the line segment PQ, where Q is the intersection of r and the perpendicular
to this line that passes through P (see figure, in this case Q=B).
$$? = 30 + 20 = 50$$
This solution follows the notations and rationale taught in the GMATH method.
Regards,
Fabio.
Fabio Skilnik :: GMATH method creator ( Math for the GMAT)
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