3 years ago

Find the m Exterior angle of triangle

Mathematics

1 answer:

Lera25 [3.4K]3 years ago

8 0

Answer:

60 degrees

Step-by-step explanation:

ebd + dbc = 180 because they make a straight line

120 + dbc = 180

dbc = 60

the three angles in a triangle always add up to 180 degrees

bcd + dbc + cdb = 180

60 + 60 + cdb = 180

120 + cdb = 180

cdb = 60

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