Question

if ∠bac is a right angle and m∠bad = 30°, then m∠dac = ?°.

Explanation:

Step1: Identify angle relationship

∠BAC = ∠BAD + ∠DAC

Step2: Substitute known values

90° = 30° + ∠DAC

Step3: Solve for ∠DAC

∠DAC = 90° - 30° = 60°

Answer:

60