Given: ad diameter of circle p. if triangle abd were drawn, the measure of angle b would equal a) 45 b) 90 c) 180

Option B

Step-by-step explanation:

we know that

The inscribed angle is half that of the arc it comprises.

In this problem the inscribed angle is the measure of angle B

so

we have that

-----> the diameter divide the circle into two equal parts

substitute

a

step-by-step explanation:

rurbrbrjrnrbjr

0.02

step-by-step explanation:

time of 9 192 631 770 periods of the radiation corresponding to the transition between the 2 hyperfine levels of the ground state of the caesium 133 atom at 0 k (but other seconds are sometimes used in astronomy)