Question

if given figure, if l||m,then find value of a​

Answer 1

Answer:

a=35

Step-by-step explanation:

given: l ll m

to find: a

solution: coa=boa (vertically opposite angles)

coa=60

coa+coe=180 (linear pair)

60+coe=180

coe=180-60=120

coe+eco+a=180 (angle sum property)

25+120+a=180

145+a=180

a=180-145=35