Question

6
Prove that the sum of four angles of quadrilateral ABCD
360
Hint draw diagonal bd by joining the point s b and d and use angle sum property of a triangle for two triangle formed
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Answer 1

Step-by-step explanation:

draw a diagonal bd

angle dab + adb + and = 180

angle bdc+ dcb+ cbd = 180

triangle abd + dbc

180 +180 = 360