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sesenic [268]
3 years ago
9

If m ABC = 130° and DBC = 30°. then mABD = [?]° Enter

Mathematics
2 answers:
jek_recluse [69]3 years ago
7 0

Answer:

100°

Step-by-step explanation:

if the entire angle ABC is 130° and angle DBC is 30° (which is part of angle ABC) you subtract the 30° from the entire angle ABC (130°) to get 100° for angle ABD

Basile [38]3 years ago
4 0

Answer:

100

Step-by-step explanation:

/_ ABC = /_ ABD + /_ DBC

Given: /_ABC = 130 and /_DBC = 30

* plug in known values *

130 = /_ ABD + 30

Subtract both sides by 30

130 - 30 = 100

30 - 30 cancels out

We're left with /_ABD = 100

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