Question

In the figure above (not to scale), ABCD is a trapezium in which AB || DC. Angle ACB = 70° and Angle ACD = 30°. Find Angle ABC. ​

Answer 1

Answer:

80 degrees

Step-by-step explanation:

since AB||DC

angle cab =angle acd = 30 degrees

by angle sum property of triangle abc

angle acb+ angle cab+ angle abc =180

100+angle abc=180

angle abc = 8- degrees

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Answer 2

Answer:

Your answer is

Step-by-step explanation:

angle ACD= angle BAC= 30°(alternate interior angles)

In triangle ABC

Using Angle Sum Property

angle ACB+angleBAC+angleABC=180°

70+30+angleABC=180

angle ABC+100=180

angleABC=180-100

angle ABC=80°

HOPE IT IS HELPFUL......