Question

please help me it's a geometry question and it is a proof and I'm very very bad at these and I need help immediately!,!

Answer 1

Since (<CAB) = 70 and (<EAB) = 10
therefore (<EAB) = 80 (1)
since (<DBA) =60 (<EBA) = 20
therefore (<EBA) = 80. (2)
from one and two
since (<EAB) = (<EBA) = 80
therefore EA = EB

Answer 2

angleEAB = angleEBA = 80°

thus the base angles of triangleEAB are equal ⇒ isosceles triangle

Hence the sides are equal → EA = EB