Mathematics

Mathematics, 25.08.2019 13:00, 44bree

Abcd is a parallelogram. if m angle dab=115 then what does m angle bcd equal

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Mathematics, 04.07.2019 14:30, sduquesnay23ocesdcom

Look at the quadrilateral shown below: a quadrilateral abcd is shown with diagonals ac and bd intersecting in point o. angle aob is labeled as 1, angle boc is labeled terra writes the following proof for the theorem: if the diagonals of a quadrilateral bisect each other, the quadrilateral is a parallelogram: terra's proof 1. ao = oc because it is given that diagonals bisect each other. 2. bo = od because it is given that diagonals bisect each other. 3. for triangles aob and cod, angle 1 is equal to angle 2 as they are 4. therefore, the triangles aob and cod are congruent by sas postulate. 5. similarly, triangles aod and cob are congruent. 6. by cpctc, angle abd is equal to angle bdc and angle adb is equal to angle dbc. 7. as the alternate interior angles are congruent the opposite sides of quadrilateral abcd are parallel. 8. therefore, abcd is a parallelogram. which is the missing phrase in terra's proof?

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Mathematics, 07.07.2019 19:30, IsabellaGracie

Look at the parallelogram abcd shown below: a parallelogram abcd is drawn with bd as the diagonal. angle abd labeled angle 1. angle cdb labeled angle 2. angle cbd labeled angle 3. angle adb labeled angle 4. the table below shows the steps to prove that if the quadrilateral abcd is a parallelogram, then its opposite sides are congruent: statement reasons 1 ab is parallel to dc and ad is parallel to bc definition of parallelogram 2 angle 1 = angle 2, angle 3 = angle 4 if two parallel lines are cut by a transversal then the alternate interior angles are congruent 3 bd = bd reflexive property 4 triangles adb and cbd are congruent if two angles and the included side of a triangle are congruent to the corresponding angles and side of another triangle, then the triangles are congruent by 5 ab = dc, ad = bc corresponding parts of congruent triangles are congruent which choice completes the missing information for reason 4 in the chart? aas postulate asa postulate hl postulate sas postulate

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Mathematics, 21.07.2019 13:30, krojas015

Look at the quadrilateral shown below: a quadrilateral abcd is shown with diagonals ac and bd intersecting in point o. angle aob is labeled as 1, angle boc is labeled as 4, angle cod is labeled as 2, and angle aod is labeled as 3. clara writes the following proof for the theorem: if the diagonals of a quadrilateral bisect each other, the quadrilateral is a parallelogram: clara'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. the triangles aob and cod are congruent by sas postulate. 4. similarly, triangles aod and cob are congruent. 5. by angle abd is equal to angle cdb and angle adb is equal to angle cbd. 6. as the alternate interior angles are congruent the opposite sides of quadrilateral abcd are parallel. 7. therefore, abcd is a parallelogram. which is the missing phrase in clara's proof?

Answers: 1

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Mathematics, 21.07.2019 13:30, lilyrockstarmag

Look at the quadrilateral shown below: a quadrilateral abcd is shown with diagonals ac and bd intersecting in point o. angle aob is labeled as 1, angle boc is labeled as 4, angle cod is labeled as 2, and angle aod is labeled as 3. clara writes the following proof for the theorem: if the diagonals of a quadrilateral bisect each other, the quadrilateral is a parallelogram: clara'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. the triangles aob and cod are congruent by sas postulate. 4. similarly, triangles aod and cob are congruent. 5. by angle abd is equal to angle cdb and angle adb is equal to angle cbd. 6. as the alternate interior angles are congruent the opposite sides of quadrilateral abcd are parallel. 7. therefore, abcd is a parallelogram. which is the missing phrase in clara's proof?

Answers: 2

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