If arc ab = 70°, how many degrees are in ∠ adb? a) 35° b) 50° c) 70° d) 110°

∠ADB=35°

Step-by-step explanation:

Given arc AB = 70°.

we have to find the angle ∠ADB

Here, Angle subtended by arc AB at O is ∠AOB = 70°

By the theorem,

The angle subtended by an arc at the center is double the angle subtended by it at any point on the remaining part of the circle.

∴ ∠AOB=2(∠ADB)

⇒

hence, angle subtended at the circumference is 35°

answer:

a=9

step-by-step explanation: lmk if you need a explanation

answer: group b.

step-by-step explanation: