Question

Can you pls help me???

Answer 1

DOB = 40
3.5y+y=180
4.5y = 180
180/4.5=40

Answer 2

Answer: Replacing with the equivalences: ∠DOB has a measure of 3.5y, the measure of ∠AOD is y, and ∠AOC + ∠COB measure 180°, we get: 3.5y = y + 180°. 3.5y - y = 180°. 2.5y = …

Explanation: