Question

und Ur grouped data and expres un
9.
In the given figure. TA and TB are tangents to the circle with centre
O. if angle ATB = 80, then find the measure of angle ABT.
​

Answer 1

ATB = 80 °

Angle of the tangent = 180 °

We know that ===> 180° - 80° =100

Number of tangents = 2

100 / 2 ===> 50

So , ABT = 50cm .