Send the question?
Must click thanks and mark brainliest
Answer:
Step-by-step explanation: make sure that a+b=180
for you'll get the answer
MAB = 360 - 255 = 105
<ADB = 1/2(mAB) = 1/2(105) = 52.5
Answer
52.5°
1,743 rounded to the nearest ten is 1,740.