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Mathematics 16 Online
OpenStudy (anonymous):

An isosceles trapezoid is a quadrilateral with two congruent legs, a pair of parallel bases, and congruent base angles. Prove the diagonals of an isosceles trapezoid are congruent. Be sure to create and name the appropriate geometric figures. This figure does not need to be submitted.

OpenStudy (anonymous):

@AlexandervonHumboldt2 Here is the last problem. Im serious this time lol.

OpenStudy (alexandervonhumboldt2):

ok

OpenStudy (alexandervonhumboldt2):

i nned about 5min

OpenStudy (anonymous):

Alrighty take your time!

OpenStudy (alexandervonhumboldt2):

Let ABCD be an isosceles trapezoid which congruent lateral sides AD and BC (Figure 1). Since the trapezoid ABCD is isosceles, its angles LDAB and LCBA are congruent. Now, consider the triangles ABD and ABC. They have the common side AB, the congruent sides AD and BC, as well as the congruent angles LDAB and LCBA concluded between these sides. Hence, these two triangles are congruent in accordance with the SAS postulate. It implies that the two diagonals AC and BD of the trapezoid ABCD are congruent as the corresponding sides of these triangles. however i'm not really sure i'm correct but i think so

OpenStudy (alexandervonhumboldt2):

LDAB L is hte angle sing

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