Which statement about BC is correct?
• BC is a tangent line because
m∠ABC=90°
• BC is a tangent line because ABC is a right triangle.
• BC is a tangent line because m∠ABC is acute.
• BC is not a tangent line because
m∠ABC≠90°.
BC not a tangent because ABC = (180 - 25 - 60 ) = 95° (not equal to 90 )
+121 
