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