02-04-2018
Mathematics

contestada

HELPPPP
What is MB

48
96
110
55

HELPPPP What is MB 48 96 110 55 class=

Respuesta :

mathmate mathmate

05-04-2018

Minor Arc AC = 110 degrees (given)
As indicated in the hints,
OA=OC => OAC=OCA=(180-110)/2 = 35
Similarly,
OAB=OBA=(48-35)=13
=>
OBC=OCB=(180-35-35-13-13)/2=(180-96)/2=84/2=42
=>
Angle B = 13+42 = 55 degrees

Check:
55+55+35+35+13+13 = 180 degrees (angles of a triangle) ok.

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