Question

It’s integrated math and i need help with this please

Answer 1

140°

Explanation:

ArcDB is a curved piece of a circle. If you know the measures of the "central angles" (angles with their vertex at the center of the circle) then you can find the measure of the arc.

AngleAPB = 40°

AngleBPC = 90°

So AngleCPD must be equal to 50° see image.

ArcDB is equal to AngleBPD (90° + 50°)

ArcDB = 140°

see images.