Ng Peng Liang's answer to roséanne's Primary 6 Maths Geometry Singapore question.
done
{{ upvoteCount }} Upvotes
clear
{{ downvoteCount * -1 }} Downvotes
BFE = 180 - 105 = 75
BFE = FEB = 75 (Isoceles triangle)
FEB = EBD = 75 (Alt angle)
(a) DEB = 180 - 75 - 68 = 37
EBC = 180 - 37 - 19 = 124
FBE = 180 - 75 - 75 = 30
(b) FBC = EBC + FBE = 124 + 30 = 154
BFE = FEB = 75 (Isoceles triangle)
FEB = EBD = 75 (Alt angle)
(a) DEB = 180 - 75 - 68 = 37
EBC = 180 - 37 - 19 = 124
FBE = 180 - 75 - 75 = 30
(b) FBC = EBC + FBE = 124 + 30 = 154
Date Posted:
1 year ago
怀疑人生ing
Great
360 Tutoring Program