Question

from fig . o is centre
measure of arcAQ =60⁰
measure of Arc QR
measure of Arc PT
measure of Arc RS=20⁰
find the following
1. angel QOR. central angle property
2. angel QOR. vertically opposite angle
3. ​

Answer 1

Answer:

(1) It is given that line AB is tangent to the circle at A.

∴ ∠CAB = 90º (Tangent at any point of a circle is perpendicular to the radius throught the point of contact)

Thus, the measure of ∠CAB is 90º.

Step-by-step explanation:

1st part