Question

20 rs for answering the ques correctly

Answer 1

Answer:

A one is correct because 160-120=40*

Answer 2

ANSWER:

SINCE AB=AC

ANGLE ABC=ANGLE ACB

LET ANGLE ABC= x=ANGLE ACB

THEREFORE, ANGLE ABC AND ANGLE ACB=30°

ALSO,ANGLE ACD=180°-30°=150°

ANGLE ADC=180°-160°=20°

NOW IN TRIANGLE ACD,

ANGLE DAC=180°-(150°+20°)

=180°-170°

ANGLE DAC=10°