1. (Neutral Geometry) Let DABCD be a convex quadrilateral such that AB CD and ADBC, Prove that DA...
7. State and prove the Law of Sines for triangles in Euclidean geometry. 8. Assume Euclidean geometry. Fix a circle and let AB and CD be two chords of the circle that intersect at point P. Prove that AP × PB = CP × PD (one both sides of the equation you are multiplying the lengths)
7. State and prove the Law of Sines for triangles in Euclidean geometry. 8. Assume Euclidean geometry. Fix a circle and let AB and...
Problem 2. [15 ptsl ABCD is a nonsimple quadrilateral. P Q, R, and S are midpoints on AB, BC,CD and AD respectively. Show that PQRS ia a parallelogram A1
Problem 2. [15 ptsl ABCD is a nonsimple quadrilateral. P Q, R, and S are midpoints on AB, BC,CD and AD respectively. Show that PQRS ia a parallelogram A1
(1) Assume the axioms of metric geometry. Let A, B, C, D be
distinct collinear points. Let f : l → R be a coordinate function
for the line l that crosses all of A, B, C, D. Suppose f(A) <
f(B) < f(C) < f(D). Prove that AD = AB ∪ BC ∪ CD. (2) Assume
the axioms of metric geometry. Let A, B, C, D be distinct collinear
points. Suppose A ∗ B ∗ C and B ∗...
535 and 541
535. Suppose that ABCD is a parallelogram, in which AB- 2BC. Let M be the midpoint of segment AB. Prove that segments CM and DM bisect angles BCD and CDA, respectively. What is the size of angle CMD? Justify your response. from you toward the sun. How high is the sun in the sky? 541. Hexagon ABCDEF is regular. Prove that segments AE and ED are perpendicular. 549 Suppose that PORS is a rhombus with PO-12 and...
2) (i) State the converse of the Alternate Interior Angle Theorem in Neutral Geometry. (ii) Prove that if the converse of the Alternate Interior Angle Theorem is true, then all triangles have zero defect. [Hint: For an arbitrary triangle, ABC, draw a line through C parallel to side AB. Justify why you can do this.] 5) Consider the following statements: I: If two triangles are congruent, then they have equal defect. II: If two triangles are similar, then they have...
3
nat you ho has cheated on this exam. 1. Let AABN and AA'B'Y by asymptotic triangles. Prove that if LABN 2 ZA'B'Y and AB> ΑΒ , then /BAΩ< ΒA. 2. Let AABC be an ordinary triangle and let D be any point of the interior. Prove that the sum of the angles of AABD is greater than the sum of the angles of AABC. 3. Suppose that two lines & and m have a common perpendicular MN. Let A...
Prove that (P;L; d) not satisfy postulate 6 of neutral geometry
L = {1 c R313(a,b,c.), (u, v, w) є R3, such that I = {(a, b, cht.(u, v, w)|t є R)), and d: Px PR U, V, W T22 Postulate 6 (The Plane Separation Postulate). For any line l, the set of all points not on l is the union of two disjoint subsets called the sides ofl. If A and B are distinct points not on t, then...
Let A = CD where C, D are n xn matrices, and is invertible. Prove that DC is similar to A. Hint: Use Theorem 6.13, and understand that you can choose P and P-inverse. Prove that if A is diagonalizable with n real eigenvalues 11, 12,..., An, then det(A) = 11. Ay n Prove that if A is an orthogonal matrix, then so are A and A'.
prove the following
1)
2)
3)
4)A parallelogram is a square iff it's diagonals are
perpendicular and congruent.
5) the median of a trapeziod is parallel to each
base
3.7) Corollary (Parallel CT). Let l, and l be coplanar lines and I a transversal. a. (Property C) 4 | l, if and only if a pair of interior angles on the same side of t are supplementary b. (Property T) Ift 1 l and 41 || 12, then t 1...