Mathematics, 05.07.2019 10:00 brockhull
Elba writes the following proof for the theorem: if the diagonals of a quadrilateral bisect each other, the quadrilateral is a parallelogram: elba's proof 1. for triangles aob and cod, angle 1 is equal to angle 2 as they are vertical angles. 2. ao = oc and bo = od because it is given that diagonals bisect each other. 3. therefore, the triangles aob and cod are congruent by sas postulate. 4. similarly, triangles aod and cob are congruent. 5. by cpctc, angle abd is equal to angle cdb and angle adb is equal to angle cbd. 6. as the are congruent, the opposite sides of quadrilateral abcd are parallel. 7. therefore, abcd is a parallelogram. which is the missing phrase in elba's proof? alternate interior angles corresponding angles corresponding sides opposite sides
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Mathematics, 21.06.2019 23:40, hardwick744
Typically a point in a three dimensional cartesian coordinate system is represented by which of the following answers in the picture !
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Mathematics, 22.06.2019 05:00, emilyborland50
Simplify each expression using the definition, identities, and properties of imaginary numbers. match each term in the list on the left to its equivalent simplified form on the right. 1. (i 3)2(-i 0)3(3i 2)4 -4 2. (i 3i -5)2(i 4i -3)0 1 3. (-i 4i 2)(2i)2(i -1i 5)3(i 0)-3 -i 4. i 3[(i 2i 3i 4)(i 0i 2i 5)]2 81
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Elba writes the following proof for the theorem: if the diagonals of a quadrilateral bisect each ot...
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