Question

In fig above, ABCD is a trapezium if angle AMN = angle MBC prove that MBCN is also a trapezium​

Answer 1

Step-by-step explanation:

given angle amn is equal to angle ABC so mn is parallel to bc

as mn is parallel to bc

angle b +angle bmn is 180

so angle mad is equal to angle bmn ---------(1)

as abcd is a trapizium angle a + angle c is 180

from (1)

angle bmn + angle c is 180

so mbnc is a trapizium

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