Question

BC is tangent to circle A at point B.


Find m/CAB if m/ACB=62".


Enter your answer in the box.


m/CAB

Answer 1

Answer:

ACB=90-62

ACB=28

Therefore we say CAB is 28.

Answer 2

Answer:

28

Step-by-step explanation:

Tangent is a line that touches the circle at one point and is perpendicular to the radius. Circle A has radius AB and tangent CB, so AB is perpendicular to CB. Therefore triangle ABC is a right angle, with angle B measuring 90 degrees. Since interior angles of a triangle add up to 180 degrees, measure of angle A is 180 - 90 - 62 = 28 degrees.