Step-by-step explanation:
a) BEC=90°(right angle triangle)
total degrees of a triangle is 180°
therefore let the missing angle be x
it will be 90+27+x=180
value of X=63°
therefore <BCE=63°
b) since ΔBAD is an
isosceles triangle
ABE must also be 52°total degrees of a triangle is 180°
let the missing angle be Y
it will be 52+52+Y=180
value of Y is 76
therefore <BAD=76°
