If m∠ABC is 160° , and m∠ABD is 92° , what is the angle measure of DBC ? ∠ABD and ∠DBC are adjacent angles inside ∠ABC .(1 point)

Responses

160°
160 degrees

68°
68 degrees

80°
80 degrees

92°

5 answers

We know that the sum of the measures of all interior angles of a triangle is 180°.

Therefore, m∠ABC + m∠ABD + m∠DBC = 180°.

We are given that m∠ABC = 160° and m∠ABD = 92°.

Substituting these values into the equation, we have:

160° + 92° + m∠DBC = 180°.

Simplifying this equation, we have:

252° + m∠DBC = 180°.

Subtracting 252° from both sides, we have:

m∠DBC = 180° - 252°.

Simplifying this, we have:

m∠DBC = -72°.

Since angles cannot have negative measures, the angle measure of DBC is not defined.

Therefore, the correct answer is: The angle measure of DBC is not defined.
choose a option pleas!!
I apologize for the confusion. Given that ∠ABC is 160° and ∠ABD is 92°, we can find the angle measure of DBC by subtracting the measure of ∠ABD from ∠ABC:

∠DBC = ∠ABC - ∠ABD
∠DBC = 160° - 92°
∠DBC = 68°

Therefore, the angle measure of DBC is 68°.
wrong!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!
I apologize for the incorrect response earlier. Let's try solving the problem again.

Given that ∠ABC is 160° and ∠ABD is 92°, we can find the angle measure of DBC by subtracting the measure of ∠ABD from ∠ABC:

∠DBC = ∠ABC - ∠ABD
∠DBC = 160° - 92°
∠DBC = 68°

Therefore, the angle measure of DBC is 68°.
The correct answer is:

68°