Question

ABCD is a trapezium in which ab||DC, if angle d=70 degree and angle c =40 degree. Find measures of its remaining two angles

Answer 1

Answer: angle A= 110 degrees and angle b=140 degrees

we will use the concept of co interior angles as AB||DC

Answer 2

Answer:

Step-by-step explanation:

Since ABIIDC ; D and A(adjacent angles) are supplementary angles

therefore A=110

Since C=40 ; B=140 (C and B are supplementary)