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4. A convex quadrilateral ◇ABCD has right angles at A, B, and C, as shown. By drawing a diagonal, show that in absolute geometry, m/D ≤ 90. A B D 3 C

4. A convex quadrilateral ◇ABCD has right angles at A, B, and C, as shown. By drawing a diagonal, show that in absolute geometry, m/D ≤ 90. A B D 3 C

Advanced Engineering Mathematics
Advanced Engineering Mathematics
10th Edition
ISBN:9780470458365
Author:Erwin Kreyszig
Publisher:Erwin Kreyszig
Chapter2: Second-order Linear Odes
Section: Chapter Questions
Problem 1RQ
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4. A convex quadrilateral ◇ABCD has right angles at A, B, and C, as shown. By drawing a diagonal, show that in absolute geometry, m/D ≤ 90. A B D C
Transcribed Image Text:4. A convex quadrilateral ◇ABCD has right angles at A, B, and C, as shown. By drawing a diagonal, show that in absolute geometry, m/D ≤ 90. A B D C
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