Question

If m ABC=122 and m ABD=71 then m DBC =

Answer 1

Answer:

m∠DBC = 51°

Explanation:

m∠ABC = 122°

m∠ABD = 71°

m∠DBC = m∠ABC - m∠ABD

m∠DBC = 51°

Answer 2

Angle DBC = 51

Explanation:

Angle ABC = angle ABD + angle DBC

We are given that angle ABC = 122 and angle ABD = 71

So 122 = 71 + angle DBC

* Solve for angle DBC *

Subtract 71 from both sides

122 - 71 = 71 - 71 + angle DBC

51 = angle DBC