Draw a straight line parallel to the base BC of the triangle ABC and meeting AB and AC (or produced) in D, E so that DE will be equal to (i) the sum of BD and CE; (ii) their difference. CONSTRUCTION: Bisect the /B to meet the bisectors of the C internally and externally in P and Q. Draw from P and Q the parallels D,PE, and QE,D2 to BC to meet AB and AC respectively in D1, D2 and E1, E2. Then E,D, and E,D2 are the two required lines '2• A Ez D2 B

Advanced Engineering Mathematics
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ISBN:9780470458365
Author:Erwin Kreyszig
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Chapter2: Second-order Linear Odes
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Draw a straight line parallel to the base BC of the triangle ABC and
meeting AB and AC (or produced) in D, E so that DE will be equal to (i) the
sum of BD and CE; (üi) their difference.
CONSTRUCTION: Bisect the /B to meet the bisectors of the C
internally and externally in P and Q. Draw from P and Q the
parallels D,PE, and QE,D, to BC to meet AB and AC respectively in
D1, D2 and E1, E2. Then E,D, and E,D, are the two required lines
A
P
B
Transcribed Image Text:Draw a straight line parallel to the base BC of the triangle ABC and meeting AB and AC (or produced) in D, E so that DE will be equal to (i) the sum of BD and CE; (üi) their difference. CONSTRUCTION: Bisect the /B to meet the bisectors of the C internally and externally in P and Q. Draw from P and Q the parallels D,PE, and QE,D, to BC to meet AB and AC respectively in D1, D2 and E1, E2. Then E,D, and E,D, are the two required lines A P B
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