Question

if m∠abd = 61°, and m∠dbc = 59°, then m∠abc = ?°

Explanation:

Step1: Determine angle composition

∠ABC = ∠ABD + ∠DBC

Step2: Substitute given angles

∠ABC = 61° + 59°

Step3: Calculate the sum

∠ABC = 120°

Answer:

120